Performance of Some Tests Compares for Equality of Means in Skewed Distribution Data
Sponsor: American Statistical Association
Keywords: right skewed distribution, generalized p-value, parametric bootstrap, fiducial based approach
Evren Ozkip
Anadolu University
Berna Yazici
Anadolu University
Ahmet Sezer
Anadolu University
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.