Index Catalog // ScholarsArchive@OSU

Non parametric c-sample tests for arbitrarily censored data

Creator:: Hirunraks, Anek
Abstract:: Consider the c- sample testing problem with null hypothesis H[subscript]o : F₁(x) = ... = F[subscript]c(x), where F[subscript]j(x), j = 1 ..., c, represent absolutely continuous distribution functions for failure distributions. Furthermore, consider arbitrarily (right) censored samples, which may arise from putting the (censored) experimental units on test at different...
Resource Type:: Dissertation
Full Text:: CENSORED DATA Redacted for Privacy Abstract approved: David R. Thomas Consider the c- sample testing

Inference procedures for pairs of distributions with proportional failure rate functions

Creator:: McRae, Kenneth Bruce
Abstract:: Some nonparametric maximum likelihood estimation procedures are developed for the class of pairs of distributions which have proportional failure rate functions. Special consideration is given to the case in which the shape of the failure rate functions are assumed to be either increasing or decreasing. Estimators of the proportionality constant,...
Resource Type:: Dissertation
Full Text:: Abstract approved: David R. Thomas Some nonparametric maximum likelihood estimation procedures are

Performance of some tests for bivariate independence, interchangeability, and equality of distributions of ratios

Creator:: Ferguson, Nancy Lo
Abstract:: The purpose of this thesis is to derive and compare asymptotic performances of certain tests of independence, interchangeability and equality of the distributions of_ratios Y/X for positive variates and Y with joint c.d.f. H(x,y) of particular forms. Three bivariate families, Morgenstern, Plackett, and Moran, are considered which permit marginal c.d.f.'s...
Resource Type:: Dissertation
Full Text:: RATIOS Redacted for Privacy Abstract approved: DR. DAVID R. THOMAS The purpose of this thesis is to

Performance of generalized Neyman smooth goodness of fit tests

Creator:: Kang, Soo-Il
Resource Type:: Dissertation
Full Text:: Redacted for Privacy Abstract approved: Dr. David R. Thomas The small sample performance of generalized

A comparison of efficiency and robustness for lower tolerance limit procedures

Creator:: Li, Chang-chung
Abstract:: Several lower tolerance limit procedures are compared with regard to efficiency and robustness. The procedures include the nonparametric based on a single order statistic and the maximum likelihood estimates for complete and censored samples from parametric families of distributions. Right-censoring is considered as an approach for improving the robustness of...
Resource Type:: Dissertation
Full Text:: Lower Tolerance Limit Procedures Abstract approved: Redacted for privacy David R. Thomas Several

Efficiency comparisons of goodness-of-fit tests for Weibull and gamma distributions with singly censored data

Creator:: Bargal, Adel Ibrahim
Abstract:: Generalizations of the smooth goodness-of-fit test statistics, the components of Cramer-von Mises type statistics and the Pearson chi-square statistics are considered for censored samples. Asymptotic efficiency comparisons are made between these general goodness-of-fit tests for Weibull and gamma distributions for certain parametric alternatives in the case of singly censored samples....
Resource Type:: Dissertation
Full Text:: approved Redacted for Privacy David R. Thomas Generalizations of the smooth goodness-of-fit test

Confidence bands for percentiles in the linear regression model

Creator:: Thomas, Dana Lester
Resource Type:: Dissertation
Full Text:: PERCENTILES IN THE LINEAR REGRESSION MODEL Abstract approved: Redacted for Privacy David R. Thomas Using

Simultaneous tolerance intervals in the linear regression model

Creator:: Limam, Mohamed
Resource Type:: Dissertation
Full Text:: Redacted for privacy Abstract approved :_ David R. Thomas Simultaneous tolerance intervals are developed

Estimation of totals for skewed populations in repeated agricultural surveys

Creator:: Viroonsri, Boonchai
Abstract:: The National Agricultural Statistical Service (NASS) conducts quarterly surveys for estimation of some primary commodities produced on farms and ranches. The commodities often have highly skewed distributions with a few farms producing very large amounts. NASS uses dual sampling frames comprised of the list frame for efficient stratification and the...
Resource Type:: Dissertation
Full Text:: Repeated Agricultural Surveys Approved by: Redacted for privacy David R. Thomas The National

Robust estimation for the mean of skewed distributions

Creator:: Hussein, Osama Abdelaziz
Abstract:: Common estimators of the mean g(θ) = Jx dFθ(x) in skewed distribution models may be sensitive to contamination by a few large observations. It is then desirable to consider robust estimators g(θ) .The approach of Hampel (1968), who defines an estimator θ for the parameter vector θ to be optimal...
Resource Type:: Dissertation
Full Text:: approved: Redacted for Privacy David R. Thomas Common estimators of the mean g(0) f x dire(x) in skewed

ScholarsArchive@OSU

Non parametric c-sample tests for arbitrarily censored data

Inference procedures for pairs of distributions with proportional failure rate functions

Performance of some tests for bivariate independence, interchangeability, and equality of distributions of ratios

Performance of generalized Neyman smooth goodness of fit tests

A comparison of efficiency and robustness for lower tolerance limit procedures

Efficiency comparisons of goodness-of-fit tests for Weibull and gamma distributions with singly censored data

Confidence bands for percentiles in the linear regression model

Simultaneous tolerance intervals in the linear regression model

Estimation of totals for skewed populations in repeated agricultural surveys

Robust estimation for the mean of skewed distributions

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