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Wilcoxon Signed-Rank Test and Wilcoxon Rank Sum Test - Nonparametric Tests - Statistics

Use the Wilcoxon signed-rank test to determine if two dependent samples are selected from populations having the same distribution Use the Wilcoxon rank sum test to determine if two independent samples are selected from populations having the same distribution. Wilcoxon Signed-Rank Test A nonparametric test that can be used to determine whether two dependent samples were selected from populations having the same distribution. Unlike the sign test, it considers the magnitude, or size, of the data entries.