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14.1 The Wilcoxon Rank Sum Test - University of Florida
users.stat.ufl.edu14.1 The Wilcoxon Rank Sum Test 1 2 12 1 12 5 This test was invented by Frank Wilcoxon (1892–1965) in 1945. Wilcoxon was a chemist who met statistical problems in his work at the research laboratories of American Cyanimid Company. The Wilcoxon rank sum test The Wilcoxon Rank Sum Test
The Wilcoxon Rank-Sum Test - Auckland
www.stat.auckland.ac.nzThe Wilcoxon Rank-Sum Test The Wilcoxon rank-sum test is a nonparametric alternative to the two-sample t-test which is based solely on the order in which the observations from the two samples fall. We will use the following as a running example. Example 1 In a genetic inheritance study discussed by Margolin [1988],