The Wilcoxon–Mann–Whitney Procedure Fails as a Test of Medians

George W. Divine, H. James Norton, Anna E. Barón and Elizabeth Juarez-Colunga

The American Statistician, 2018, vol. 72, issue 3, 278-286

Abstract: To illustrate and document the tenuous connection between the Wilcoxon–Mann–Whitney (WMW) procedure and medians, its relationship to mean ranks is first contrasted with the relationship of a t-test to means. The quantity actually tested: Pr ^(X1Date: 2018
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DOI: 10.1080/00031305.2017.1305291

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