The Wilcoxon test comes in two versions, the rank sum test and the signed-rank test. The goal of the test is to determine if two or more sets of pairs of data are different from one another in a ...

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Key Points The Wilcoxon Rank Sum Test is a non-parametric means of comparing data between two sets. It operates as a useful alternative to the 2-sample t-test. The Wilcoxon Rank Sum Test sometimes ...

J. L. Hodges, Jr., E. L. Lehmann, Estimates of Location Based on Rank Tests, The Annals of Mathematical Statistics, Vol. 34, No. 2 (Jun., 1963), ... In Sections 2-5 point estimates of location or ...

Georg Neuhaus, Conditional Rank Tests for the Two-Sample Problem Under Random Censorship, The Annals of Statistics, Vol. 21, No. 4 (Dec., 1993), pp. 1760-1779 Free online reading for over 10 million ...