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Activity Number: 376
Type: Contributed
Date/Time: Tuesday, August 6, 2013 : 10:30 AM to 12:20 PM
Sponsor: Section on Statistical Computing
Abstract - #308955
Title: PERFORMANCE OF SOME TESTS COMPARES FOR EQUALITY OF MEANS IN SKEWED DISTRIBUTION DATA
Author(s): Evren Ozkip*+ and Ahmet Sezer and Berna Yazici
Companies: and Anadolu University and Anadolu University
Keywords: generalized p value ; right skewed distributions ; simulation ; fiducial based approach ; parametric bootstrap
Abstract:

Right skewed distributed data are frequently used in many scientific research especially lognormal, Weibull and gamma distributions. It is important to compare different in means between the several groups in skewed data. The purpose of this study was to evaluate some tests applied for ANOVA when data followed a lognormal, Weibull or gamma distribution. In this study, performance of these tests compared and a simulation study performed to compare these tests according to type one error and powers in different combinations of parameters and various sample size.


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