On power and sample size determinations for the Wilcoxon-Mann-Whitney test

Gwowen Shieh, Show Li Jan, Ronald H. Randles*

*此作品的通信作者

研究成果: Article同行評審

47 引文 斯高帕斯(Scopus)

摘要

This article considers power and sample size calculations for the Wilcoxon-Mann-Whitney test. An exact variance large-sample method is introduced and explicit formulas are derived for the uniform, normal, double exponential and exponential shift models. A Monte Carlo simulation study is conducted to evaluate the exact variance procedure and compare its performance with some other large sample methods. The results show the remarkable accuracy of the suggested formula and the fundamental limitations of the other approximations. Practical considerations in determination of sample size for the two-sample location problem are also discussed.

原文English
頁(從 - 到)33-43
頁數11
期刊Journal of Nonparametric Statistics
18
發行號1
DOIs
出版狀態Published - 1 1月 2006

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