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Dissertations / Theses on the topic 'Test of homogeneity'

Author: Grafiati

Published: 4 June 2021

Last updated: 21 February 2023

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1

Wu, Baohua. "Data Driven Approaches to Testing Homogeneity of Intraclass Correlation Coefficients." Digital Archive @ GSU, 2010. http://digitalarchive.gsu.edu/math_theses/92.

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The test of homogeneity for intraclass correlation coefficients has been one of the active topics in statistical research. Several chi-square tests have been proposed to test the homogeneity of intraclass correlations in the past few decades. The big concern for them is that these methods are seriously biased when sample sizes are not large. In this thesis, data driven approaches are proposed to testing the homogeneity of intraclass correlation coefficients of several populations. Through simulation study, data driven methods have been proved to be less biased and accurate than some commonly u

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2

Mu, Zhiqiang. "Comparing the Statistical Tests for Homogeneity of Variances." Digital Commons @ East Tennessee State University, 2006. https://dc.etsu.edu/etd/2212.

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Testing the homogeneity of variances is an important problem in many applications since statistical methods of frequent use, such as ANOVA, assume equal variances for two or more groups of data. However, testing the equality of variances is a difficult problem due to the fact that many of the tests are not robust against non-normality. It is known that the kurtosis of the distribution of the source data can affect the performance of the tests for variance. We review the classical tests and their latest, more robust modifications, some other tests that have recently appeared in the literature,

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3

Nian, Gaowei. "A score test of homogeneity in generalized additive models for zero-inflated count data." Kansas State University, 2014. http://hdl.handle.net/2097/18230.

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Master of Science<br>Department of Statistics<br>Wei-Wen Hsu<br>Zero-Inflated Poisson (ZIP) models are often used to analyze the count data with excess zeros. In the ZIP model, the Poisson mean and the mixing weight are often assumed to depend on covariates through regression technique. In other words, the effect of covariates on Poisson mean or the mixing weight is specified using a proper link function coupled with a linear predictor which is simply a linear combination of unknown regression coefficients and covariates. However, in practice, this predictor may not be linear in regression par

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4

Stewart, Michael Ian. "Asymptotic methods for tests of homogeneity for finite mixture models." Thesis, The University of Sydney, 2002. http://hdl.handle.net/2123/855.

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We present limit theory for tests of homogeneity for finite mixture models. More specifically, we derive the asymptotic distribution of certain random quantities used for testing that a mixture of two distributions is in fact just a single distribution. Our methods apply to cases where the mixture component distributions come from one of a wide class of one-parameter exponential families, both continous and discrete. We consider two random quantities, one related to testing simple hypotheses, the other composite hypotheses. For simple hypotheses we consider the maximum of the standard

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5

Stewart, Michael Ian. "Asymptotic methods for tests of homogeneity for finite mixture models." University of Sydney. Mathematics and Statistics, 2002. http://hdl.handle.net/2123/855.

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We present limit theory for tests of homogeneity for finite mixture models. More specifically, we derive the asymptotic distribution of certain random quantities used for testing that a mixture of two distributions is in fact just a single distribution. Our methods apply to cases where the mixture component distributions come from one of a wide class of one-parameter exponential families, both continous and discrete. We consider two random quantities, one related to testing simple hypotheses, the other composite hypotheses. For simple hypotheses we consider the maximum of the standard

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6

Höge, Elisabet. "Test and Analysis of Homogeneity Regarding Failure Intensity of Components in Nuclear Power Plants." Thesis, Uppsala universitet, Matematiska institutionen, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-162564.

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In the Probabilistic Safety Assessment (PSA) all potential failure events of a system, for example a nuclear power plant, are identified in order to evaluate the total probability for a severe accident. The input data to the PSA, the reliability parameters, are derived by a two-stage Bayesian method which comprises an assumption of homogeneity among the components of a population. If the components are assumed to be inhomogeneous each individual component is assessed its own failure rate. Contrary, if the components are assumed to be homogeneous the data is pooled before a common reliability p

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7

Osaka, Haruki. "Asymptotics of Mixture Model Selection." Thesis, The University of Sydney, 2021. https://hdl.handle.net/2123/27230.

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In this thesis, we consider the likelihood ratio test (LRT) when testing for homogeneity in a three component normal mixture model. It is well-known that the LRT in this setting exhibits non-standard asymptotic behaviour, due to non-identifiability of the model parameters and possible degeneracy of Fisher Information matrix. In fact, Liu and Shao (2004) showed that for the test of homogeneity in a two component normal mixture model with a single fixed component, the limiting distribution is an extreme value Gumbel distribution under the null hypothesis, rather than the usual chi-squared distri

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8

Bagdonavičius, Vilijandas B., Ruta Levuliene, Mikhail S. Nikulin, and Olga Zdorova-Cheminade. "Tests for homogeneity of survival distributions against non-location alternatives and analysis of the gastric cancer data." Universität Potsdam, 2004. http://opus.kobv.de/ubp/volltexte/2011/5152/.

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The two and k-sample tests of equality of the survival distributions against the alternatives including cross-effects of survival functions, proportional and monotone hazard ratios, are given for the right censored data. The asymptotic power against approaching alternatives is investigated. The tests are applied to the well known chemio and radio therapy data of the Gastrointestinal Tumor Study Group. The P-values for both proposed tests are much smaller then in the case of other known tests. Differently from the test of Stablein and Koutrouvelis the new tests can be applied not only for singl

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9

Gao, Siyu. "The impact of misspecification of nuisance parameters on test for homogeneity in zero-inflated Poisson model: a simulation study." Kansas State University, 2014. http://hdl.handle.net/2097/17804.

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Master of Science<br>Department of Statistics<br>Wei-Wen Hsu<br>The zero-inflated Poisson (ZIP) model consists of a Poisson model and a degenerate distribution at zero. Under this model, zero counts are generated from two sources, representing a heterogeneity in the population. In practice, it is often interested to evaluate this heterogeneity is consistent with the observed data or not. Most of the existing methodologies to examine this heterogeneity are often assuming that the Poisson mean is a function of nuisance parameters which are simply the coefficients associated with covariates. Howe

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10

Carvalho, Helton Graziadei de. "Testes bayesianos para homogeneidade marginal em tabelas de contingência." Universidade de São Paulo, 2015. http://www.teses.usp.br/teses/disponiveis/45/45133/tde-27082015-181850/.

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O problema de testar hipóteses sobre proporções marginais de uma tabela de contingência assume papel fundamental, por exemplo, na investigação da mudança de opinião e comportamento. Apesar disso, a maioria dos textos na literatura abordam procedimentos para populações independentes, como o teste de homogeneidade de proporções. Existem alguns trabalhos que exploram testes de hipóteses em caso de respostas dependentes como, por exemplo, o teste de McNemar para tabelas 2 x 2. A extensão desse teste para tabelas k x k, denominado teste de homogeneidade marginal, usualmente requer, sob a abordagem

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Driana, Elin. "GENDER DIFFERENTIAL ITEM FUNCTIONING ON A NINTH-GRADE MATHEMATICS PROFICIENCY TEST IN APPALACHIAN OHIO." Ohio University / OhioLINK, 2007. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1181693190.

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12

Schumann, Frank. "Untersuchung zur prädiktiven Validität von Konzentrationstests." Doctoral thesis, Universitätsbibliothek Chemnitz, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-qucosa-209613.

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In der hier vorliegenden Arbeit wurde die Validität von Aufmerksamkeits- und Konzentrationstests untersucht. Im Vordergrund stand dabei die Frage nach dem Einfluss verschiedener kritischer Variablen auf die prädiktive Validität in diesen Tests, insbesondere der Itemschwierigkeit und Itemhomogenität, der Testlänge bzw. des Testverlaufs, der Testdiversifikation und der Validität im Kontext einer echten Personalauslese. In insgesamt fünf Studien wurden die genannten Variablen systematisch variiert und auf ihre prädiktive Validität zur (retrograden und konkurrenten) Vorhersage von schulischen und

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13

Carpes, Ricardo Howes. "Variabilidade da produção de frutos de abobrinha italiana em função do manejo." Universidade Federal de Santa Maria, 2006. http://repositorio.ufsm.br/handle/1/5007.

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>In order to determine the variability for the culture of Italian pumpkin with passing of the multiple harvests in protecting environment and verifying the influence of the plants that had not presented apt fruits to be harvested in definitive harvest in its variance in different handling one conducted a work in the stations winter-spring and summer-autumn 2004/2005, in pertaining area to the Department of Fitotecnia, in UFSM, SantaMaria, RS. The experiment consisted in two tunnels with different handlings, three lines of twenty and

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14

Qi, Meng. "Development in Normal Mixture and Mixture of Experts Modeling." UKnowledge, 2016. http://uknowledge.uky.edu/statistics_etds/15.

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In this dissertation, first we consider the problem of testing homogeneity and order in a contaminated normal model, when the data is correlated under some known covariance structure. To address this problem, we developed a moment based homogeneity and order test, and design weights for test statistics to increase power for homogeneity test. We applied our test to microarray about Down’s syndrome. This dissertation also studies a singular Bayesian information criterion (sBIC) for a bivariate hierarchical mixture model with varying weights, and develops a new data dependent information criterio

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15

Wang, Ling. "Homogeneity tests for several poisson populations." HKBU Institutional Repository, 2008. http://repository.hkbu.edu.hk/etd_ra/909.

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16

Mvogo, Jean Kisito. "Regroupement mécanique par méthode vibratoire des bois du bassin du Congo." Thesis, Bordeaux 1, 2008. http://www.theses.fr/2008BOR13790/document.

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L’objet de ce travail de thèse est le regroupement des essences bois du bassin du Congo en quatre groupes en fonction de la similitude de leurs propriétés mécaniques essentielles. Le module d’élasticité (MOE), propriété indicatrice, est estimé par une méthode non destructive : l’essai vibratoire. Pour chaque classe, le fractile à 5% d’exclusion supérieur d’une propriété mécanique est calculé à partir d’une théorie clairement exposée. Le bassin du Congo est un patrimoine en danger à cause des pressions anthropiques au premier rang desquelles figure la coupe hyper sélective des essences bois. Le

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17

Dupuis, Jérôme. "Analyse statistique bayesienne de modèles de capture-recapture." Paris 6, 1995. http://www.theses.fr/1995PA066077.

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Le modele statistique de base que nous considerons, consiste en n realisations simultanees et i. I. D. D'un processus d'interet ramene a une chaine de markov, avec donnees manquantes, non homogene, a espace d'etat fini comportant un unique etat absorbant. Alors que l'estimateur du maximum de vraisemblance est actuellement disponible l'analyse statistique bayesienne de ce modele de capture-recapture n'a pas encore ete abordee. L'estimation bayesienne des probabilites de survie et de mouvement du modele de base est realisee via l'algorithme de gibbs. Des conditions suffisantes de convergence de

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18

MARACCHINI, GIANLUCA. "Vulnerabilità degli edifici esistenti: utilizzo e limiti di procedure e metodi adottati nella pratica ingegneristica per la sua valutazione e riduzione." Doctoral thesis, Università Politecnica delle Marche, 2017. http://hdl.handle.net/11566/245616.

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Il problema della mitigazione del rischio sismico degli edifici esistenti è in Italia una questione di primaria importanza, sia a causa dell’elevata vulnerabilità strutturale di gran parte del patrimonio edilizio esistente, sia a causa, nel caso degli edifici storici, del loro valore artistico e culturale. In un’ottica di prevenzione, date le scarse risorse disponibili e data la necessità di intervenire nel minor tempo possibile, risulta fondamentale poter disporre di strumenti affidabili che consentano di evitare inaccurate valutazioni di sicurezza sismica. La presente tesi affronta quindi al

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19

Islam, Md Khairul. "TRANSFORMED TESTS FOR HOMOGENEITY OF VARIANCES AND MEANS." Bowling Green State University / OhioLINK, 2006. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1150727264.

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20

Ruth, David M. "Applications of assignment algorithms to nonparametric tests for homogeneity." Monterey, California : Naval Postgraduate School, 2009. http://edocs.nps.edu/npspubs/scholarly/dissert/2009/Sep/09Sep%5FRuth%5FPhD.pdf.

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Dissertation (Ph.D. in Operations Research)--Naval Postgraduate School, September 2009.<br>Dissertation supervisor: Koyak, Robert. "September 2009." Description based on title screen as viewed on November 5, 2009. Author(s) subject terms: Nonparametric test, distribution-free test, non-bipartite matching, bipartite matching, change point. Includes bibliographical references (p. 121-126). Also available in print.

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21

Franke, Johannes. "Risiken des Klimawandels für den Wasserhaushalt - Variabilität und Trend des zeitlichen Niederschlagsspektrums." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2009. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-25922.

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Die vorliegende Arbeit wurde auf der Grundlage begutachteter Publikationen als kumulative Dissertation verfasst. Ziel war hier, das zeitliche Spektrum des Niederschlages unter sich bereits geänderten und zukünftig möglichen Klimabedingungen zu untersuchen, um daraus risikobehaftete Auswirkungen auf den Wasserhaushalt ableiten zu können. Ausgehend von den für Sachsen bzw. Mitteldeutschland jahreszeitlich berechneten Trends für den Niederschlag im Zeitraum 1951-2000 wurde hier der Schwerpunkt auf das Verhalten des Starkniederschlages im Einzugsgebiet der Weißeritz (Osterzgebirge) während der Veg

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22

Stewart, Michael. "Asymptotic methods for tests of homogeneity for finite mixture models." Connect to full text, 2002. http://hdl.handle.net/2123/855.

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Thesis (Ph. D.)--University of Sydney, 2002.<br>Title from title screen (viewed Apr. 28, 2008). Submitted in fulfilment of the requirements for the degree of Doctor of Philosophy to the School of Mathematics and Statistics, Faculty of Science. Includes bibliography. Also available in print form.

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23

Dirbák, Štefan. "Návrh a realizace plošného měření rezistivity půdy." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2020. http://www.nusl.cz/ntk/nusl-413053.

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This diploma thesis deals with research and study of soil impedance measurement and soil resistivity. Currently, the issue of measuring and determining soil resistance is ensured through the gradual measurement of certain soil parameters at individual points of the surface (or depth of the ground). This thesis focuses on the idea of measuring soil resistance on a certain area using a network of electrodes through a suitably designed test, measurement and evaluation system. Such an approach may find application in the need to determine soil parameters (such as resistivity) on a specific demarca

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SILVA, Débora Karollyne Xavier. "Análise de diagnóstico para o modelo de regressão Log-Birnbaum-Saunders generalizado." Universidade Federal de Campina Grande, 2013. http://dspace.sti.ufcg.edu.br:8080/jspui/handle/riufcg/1391.

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Submitted by Johnny Rodrigues (johnnyrodrigues@ufcg.edu.br) on 2018-08-08T21:14:19Z No. of bitstreams: 1 DÉBORA KAROLLYNE XAVIER SILVA - DISSERTAÇÃO PPGMAT 2013..pdf: 5676823 bytes, checksum: 10779ac6b54c624585a998fed783af51 (MD5)<br>Made available in DSpace on 2018-08-08T21:14:19Z (GMT). No. of bitstreams: 1 DÉBORA KAROLLYNE XAVIER SILVA - DISSERTAÇÃO PPGMAT 2013..pdf: 5676823 bytes, checksum: 10779ac6b54c624585a998fed783af51 (MD5) Previous issue date: 2013-12<br>Capes<br>A distribuição Birnbaum-Saunders surgiu em 1969 com aplicações fortemente ligadas à engenharia e se expandiu nas últimas

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Franke, Johannes. "Risiken des Klimawandels für den Wasserhaushalt – Variabilität und Trend des zeitlichen Niederschlagsspektrums." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2011. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-71425.

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Die vorliegende Arbeit wurde auf der Grundlage begutachteter Publikationen als kumulative Dissertation verfasst. Ziel war hier, das zeitliche Spektrum des Niederschlages unter sich bereits geänderten und zukünftig möglichen Klimabedingungen zu untersuchen, um daraus risikobehaftete Auswirkungen auf den Wasserhaushalt ableiten zu können. Ausgehend von den für Sachsen bzw. Mitteldeutschland jahreszeitlich berechneten Trends für den Niederschlag im Zeitraum 1951-2000 wurde hier der Schwerpunkt auf das Verhalten des Starkniederschlages im Einzugsgebiet der Weißeritz (Osterzgebirge) während der Veg

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Gustin, Sara. "Investigation of some tests for homogeneity of intensity with applications to insurance data." Thesis, Uppsala universitet, Matematisk statistik, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-164588.

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LUITEN, JOHN WILLIAM. "AN EMPIRICAL COMPARISON OF SELECTED ALTERNATIVES TO THE KUDER AND RICHARDSON FORMULA 20 (RELIABILITY, HOMOGENEITY, SIMULATION)." Diss., The University of Arizona, 1986. http://hdl.handle.net/10150/183963.

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Several alternatives to the Kuder and Richardson formula number 20 (KR20) were compared for accuracy using simulated and actual data sets. Coefficients by Loevinger (1948), Horst (1954), Raju (1982), and Cliff (1984) as well as the Kuder and Richardson formulae numbers 8 and 14 were examined. These alternative reliability coefficients were compared by (1) simulation of tests with varying degrees of item difficulty dispersion, subject proficiency, reliability, and length, and (2) use of the norming samples of the Curriculum Referenced Tests of Mastery (Charles E. Merrill Publishing Co., publish

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Bakšajev, Aleksej. "Statistical tests based on N-distances." Doctoral thesis, Lithuanian Academic Libraries Network (LABT), 2010. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2010~D_20100409_082443-70166.

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The thesis is devoted to the application of a new class of probability metrics, N-distances, introduced by Klebanov (Klebanov, 2005; Zinger et al., 1989), to the problems of verification of the classical statistical hypotheses of goodness of fit, homogeneity, symmetry and independence. First of all a construction of statistics based on N metrics for testing mentioned hypotheses is proposed. Then the problem of determination of the critical region of the criteria is investigated. The main results of the thesis are connected with the asymptotic behavior of test statistics under the null and alte

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Aaron, Lisa Therese. "A comparative simulation of Type I error and Power of Four tests of homogeneity of effects for random- and fixed-effects models of meta-analysis." [Tampa, Fla.] : University of South Florida, 2003. http://purl.fcla.edu/fcla/etd/SFE0000222.

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Vu, Thi Lan Huong. "Analyse statistique locale de textures browniennes multifractionnaires anisotropes." Thesis, Aix-Marseille, 2019. http://www.theses.fr/2019AIXM0094.

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Nous construisons quelques extensions anisotropes des champs browniens multifractionnels qui rendent compte de phénomènes spatiaux dont les propriétés de régularité et de directionnalité peuvent varier dans l’espace. Notre objectif est de mettre en place des tests statistiques pour déterminer si un champ observé de ce type est hétérogène ou non. La méthodologie statistique repose sur une analyse de champ par variations quadratiques, qui sont des moyennes d’incréments de champ au carré. Notre approche, ces variations sont calculées localement dans plusieurs directions. Nous établissons un résul

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Bakšajev, Aleksej. "Statistinių hipotezių tikrinimas, naudojant N-metrikas." Doctoral thesis, Lithuanian Academic Libraries Network (LABT), 2010. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2010~D_20100409_082453-39497.

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Disertacinis darbas yra skirtas N-metrikų teorijos (Klebanov, 2005; Zinger et al., 1989) pritaikymui klasikinėms statistinėms suderinamumo, homogeniškumo, simetriškumo bei nepriklausomumo hipotezėms tikrinti. Darbo pradžioje pasiūlytas minėtų hipotezių testinių statistikų konstravimo būdas, naudojant N-metrikas. Toliau nagrinėjama problema susijusi su suformuotų kriterijų kritinės srities nustatymu. Pagrindiniai darbo rezultatai yra susiję su pasiūlytų kriterijaus statistikų asimptotiniu skirstiniu. Bendru atveju N-metrikos statistikų asimptotinis skirstinys esant nulinei hipotezei sutampa su

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Bienaise, Solène. "Tests combinatoires en analyse géométrique des données - Etude de l'absentéisme dans les industries électriques et gazières de 1995 à 2011 à travers des données de cohorte." Phd thesis, Université Paris Dauphine - Paris IX, 2013. http://tel.archives-ouvertes.fr/tel-00941220.

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La première partie de la thèse traite d'inférence combinatoire en Analyse Géométrique des Données (AGD). Nous proposons des tests multidimensionnels sans hypothèse sur le processus d'obtention des données ou les distributions. Nous nous intéressons ici aux problèmes de typicalité (comparaison d'un point moyen à un point de référence ou d'un groupe d'observations à une population de référence) et d'homogénéité (comparaison de plusieurs groupes). Nous utilisons des procédures combinatoires pour construire un ensemble de référence par rapport auquel nous situons les données. Les statistiques de t

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Lin, Tsung-Wei, and 林宗威. "A test of homogeneity distribution with similarity coefficient." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/89538033420687021547.

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碩士<br>中原大學<br>應用數學研究所<br>94<br>Linear Regression Model is a model that is meant to find out the statistic of testing hypothesis on the basis oformal distribution and then to calculate the confidence interval. Therefore, the importance of testing if the data match normal distribution cannot be overemphasized. Generally speaking, there are two methods of testing normal distribution: one is normal probability plot and the other is Shapiro-Wilks test. However, different people may make different conclusions when they are explaining the same draw due to he different methods they use. As a result, S

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Chen, Ying-Hsi, and 陳瑩曦. "A variety of test methods for testing homogeneity forces." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/08965239848679281901.

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碩士<br>淡江大學<br>中等學校教師在職進修數學教學碩士學位班<br>101<br>Among the many methods of goodness-of-fit test, the most frequently mentioned is the traditional Pearson chi-square statistics. But chi-square test because of segmentation starting(cell point) the selection , resulting in differences in test results. Select a starting point(cell point), you can use 0 as the starting point is equivalent to using the conversion of data to do chi-square test. Data Conversion to other test methods impact test force is not being discussed topics of this thesis to discuss common analog test methods test force might be impa

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Mawella, Nadeesha R. "A robust test of homogeneity in zero-inflated models for count data." Diss., 2018. http://hdl.handle.net/2097/38877.

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Doctor of Philosophy<br>Department of Statistics<br>Wei-Wen Hsu<br>Evaluating heterogeneity in the class of zero-inflated models has attracted considerable attention in the literature, where the heterogeneity refers to the instances of zero counts generated from two different sources. The mixture probability or the so-called mixing weight in the zero-inflated model is used to measure the extent of such heterogeneity in the population. Typically, the homogeneity tests are employed to examine the mixing weight at zero. Various testing procedures for homogeneity in zero-inflated models, such as s

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Li, Pengfei. "Hypothesis Testing in Finite Mixture Models." Thesis, 2007. http://hdl.handle.net/10012/3442.

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Mixture models provide a natural framework for unobserved heterogeneity in a population. They are widely applied in astronomy, biology, engineering, finance, genetics, medicine, social sciences, and other areas. An important first step for using mixture models is the test of homogeneity. Before one tries to fit a mixture model, it might be of value to know whether the data arise from a homogeneous or heterogeneous population. If the data are homogeneous, it is not even necessary to go into mixture modeling. The rejection of the homogeneous model may also have scientific implications. For exa

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Bi, Daning. "Various Statistical Inferences for High-dimensional Time Series: Bootstrap, Homogeneity Pursuit and Autocovariance Test." Phd thesis, 2021. http://hdl.handle.net/1885/233476.

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This thesis aims to study various statistical inferences for high-dimensional data, especially high-dimensional time series, including sieve bootstrap, homogeneity pursuit, and an equivalence test for spiked eigenvalues of autocovariance matrix. The primary techniques used in this thesis are novel dimension-reduction methods developed from factor models and principal component analysis (PCA). Chapter 2 proposes a novel sieve bootstrap method for high-dimensional time series and applies it to sparse functional time series where the actual observations are not dense, and pre-smoothing is misl

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Tseng, Sheng-Hsiang, and 曾聖翔. "Applications of Randomness and Homogeneity Test to Enhance the Systematic Error Resolution for Wafer Map Analysis." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/w88645.

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碩士<br>國立中央大學<br>電機工程學系<br>107<br>The systematic error is hard to distinguish in small diesize wafer. In order to solve the problem, this paper analyze six kinds of symptomatic failure types among the nine kinds of systematic errors. Each of failure types have been cut into different shapes. The randomness and homogeneity test are used to enhance the detection resolution of systematic error after doing wafer partition. Then, we observe the resolution ratio in systematic error after doing partition. After cutting into various shapes, we use the randomness and homogeneity test to test each wa

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Lin, Wan-Ting, and 林琬婷. "Self-incompatibility assessment and homogeneity test in anther culture-derived plantlet of purple coneflower (Echinacea purpurea L. Moench)." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/14952636314315111644.

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碩士<br>中興大學<br>農藝學系所<br>99<br>Echinacea (Asteraceae), is genus of herbaceous perennials, used as medicinal plants. The major pharmacological activity components such as, caffeic acid derivatives, alkylamides, polysaccharides, and polycaetylenes, with anti-inflammatory, stimulates the immune system, anti-oxidation effects. Commercial production of Echinacea mainly propagated by seed, however, Echinacea with the characteristics of self-incompatibility and protandrous, mainly through insects as pollinator. For cross-pollinated plants, it might form a heterogeneous group, propagated by seed will le

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"Power, extension and multiple comparisons for the Lin and Wang test for overall homogeneity of Weibull survival curves." Tulane University, 2007.

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Fiala, Ondřej. "Změny srážko-odtokového režimu v oblasti Šumavy." Master's thesis, 2017. http://www.nusl.cz/ntk/nusl-369389.

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CHANGES OF RAINFALL-RUNOFF REGIME IN THE ŠUMAVA / BOHEMIAN FOREST REGION Abstract: The goal of this thesis is the evaluation of changes in rainfall-runoff regime in the Šumava region from time and spacial point of view. The thesis includes research and applied part. The research part is dedicated to the methods of evaluation of runoff changes and their possible causes in the Šumava region. In the applied part there is an analysis of precipitaion - runoff regime for long-term time series of average annual and monthly discharges and also annual and monthly precipitations for selected gauging sta

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Li, Ming-Chang, and 李明昌. "A Test of Homogeneity of Firms Included in the GAO Restatement Database Classified by News Search Results-The Case of Conservative Accounting Practices." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/06991320505518302260.

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碩士<br>元智大學<br>會計學系<br>95<br>This study is based on the GAO restatement sample, which consists of 919 restatements of financial statements by listed corporations from the period between 1997 through June 30, 2002. This database has been employed by many studies to examine various aspects of financial restatements. However, all these studies have treated the entire sample group as homogeneous. On a closer examination based on LexisNexis news search shows that many of these restatements are innocuous, for example, restatements were made to adopt new pronouncements while many restatements were not

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Chuang, Kai-Ting, and 莊凱婷. "A Test of Homogeneity of Firms Included in the GAO Restatement Database Classified by New Search Results-the Case of Analysts’ Earning Forecast Characteristics." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/84380377115263630439.

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碩士<br>元智大學<br>會計學系<br>95<br>This study is based on the GAO restatement sample, which consists of 919 restatements of financial statements by listed corporations from the period between 1997 through June 30,2002. This database has been employed by many studies to examine various aspects of financial restatements. However, all these studies have treated the entire sample group as homogeneous. On a closer examination based on Lexis Nexis news search shows that many of these restatements are innocuous, for example, restatements were made to adopt new pronouncements while many restatements were not

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Wu, Chiu-Mei, and 吳秋美. "A Test of Homogeneity of Firms Included in the GAO Restatement Database Classified by News Search Results-The Case of Information Transfer of Earnings Restatements." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/05489921464720394297.

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碩士<br>元智大學<br>會計學系<br>95<br>This study is based on the GAO restatement sample, which consists of 919 restatements of financial statements by listed corporations from the period between 1997 through June 30, 2002. This database has been employed by many studies to examine various aspects of financial restatements. However, all these studies have treated the entire sample group as homogeneous. On a closer examination based on Lexis Nexis news search shows that many of these restatements are innocuous, for example, restatements were made to adopt new pronouncements while many restatements were no

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Schumann, Frank. "Untersuchung zur prädiktiven Validität von Konzentrationstests: Ein chronometrischer Ansatz zur Überprüfung der Rolle von Itemschwierigkeit, Testlänge, und Testdiversifikation." Doctoral thesis, 2015. https://monarch.qucosa.de/id/qucosa%3A20551.

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In der hier vorliegenden Arbeit wurde die Validität von Aufmerksamkeits- und Konzentrationstests untersucht. Im Vordergrund stand dabei die Frage nach dem Einfluss verschiedener kritischer Variablen auf die prädiktive Validität in diesen Tests, insbesondere der Itemschwierigkeit und Itemhomogenität, der Testlänge bzw. des Testverlaufs, der Testdiversifikation und der Validität im Kontext einer echten Personalauslese. In insgesamt fünf Studien wurden die genannten Variablen systematisch variiert und auf ihre prädiktive Validität zur (retrograden und konkurrenten) Vorhersage von schulischen und

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"Comparing the Statistical Tests for Homogeneity of Variances." East Tennessee State University, 2006. http://etd-submit.etsu.edu/etd/theses/available/etd-0714106-143011/.

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Lin, Jyun-Sheng, and 林峻陞. "Improved likelihood ratio tests for testing marginal homogeneity in 2 × 2 contingency tables." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/n23nsa.

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碩士<br>國立中央大學<br>統計研究所<br>97<br>This paper considers one-sided hypotheses for testing the marginal homogeneity in a binary matched-pairs design. First we use the exact unconditional tests based on the likelihood ratio statistic to obtain the p-value. The likelihood ratio p-value may be very conservative if the sample sizes are small or moderate. Alternatively, we consider the confidence interval p-value with the specified confidence coefficient, which was derived by Berger and Sidik (2003). But numerical calculations are not give a strong evidence to show that the confidence interval p-value is

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Ranjineh, Khojasteh Enayatollah. "Geostatistical three-dimensional modeling of the subsurface unconsolidated materials in the Göttingen area." Doctoral thesis, 2013. http://hdl.handle.net/11858/00-1735-0000-0001-BB9A-B.

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Das Ziel der vorliegenden Arbeit war die Erstellung eines dreidimensionalen Untergrundmodells der Region Göttingen basierend auf einer geotechnischen Klassifikation der unkosolidierten Sedimente. Die untersuchten Materialen reichen von Lockersedimenten bis hin zu Festgesteinen, werden jedoch in der vorliegenden Arbeit als Boden, Bodenklassen bzw. Bodenkategorien bezeichnet. Diese Studie evaluiert verschiedene Möglichkeiten durch geostatistische Methoden und Simulationen heterogene Untergründe zu erfassen. Derartige Modellierungen stellen ein fundamentales Hilfswerkzeug u.a. in der Geotechnik,

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Laisi, Elton. "Development of a flood-frequency model for the river basins of the Central Region of Malawi as a tool for engineering design and disaster preparedness in flood-prone areas." Diss., 2016. http://hdl.handle.net/10500/23597.

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Since 1971, a number of flood frequency models have been developed for river basins in Malawi for use in the design of hydraulic structures, but the varied nature of their results have most often given a dilemma to the design engineer due to differences in magnitudes of calculated floods for given return periods. All the known methods for flood frequency analysis developed in country so far have not used a homogeneity test for the river basins from which the hydrological data has been obtained. This study was thus conducted with a view to resolving this problem and hence improve the desi

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Rossouw, Pieter Johannes. "A qualitative evaluation of self-motivation in a measure of Trait Emotional Intelligence." Diss., 2014. http://hdl.handle.net/10500/14495.

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In this study, the author provided a discussion of international cross-cultural validation studies which reported low internal consistency reliabilities for the self-motivation facet of the Trait Emotional Intelligence Questionnaire (TEIQue). A review of salient models of emotional intelligence (EI) revealed that self-motivation was consistently conceptualised as part of the sampling domain of trait and mixed models of EI, but not ability-based conceptualisations of the construct. The author provided a qualitative evaluation of the ten self-motivation test items as they appeared in the TEIQue

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