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Wilcoxon Tests

Wilcoxon Tests. What is the Purpose of Wilcoxon Tests?. These are nonparametric alternatives to the independent and dependent samples t-tests. Based on ordinal data. Normal distributions are not required. What is the Purpose of Wilcoxon Tests?.

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Wilcoxon Signed-Rank Test

Wilcoxon Signed-Rank Test. Uses both direction (sign) and magnitude. Applies to the case of symmetric continuous distributions: Mean equals median. Method. H 0 : m = m 0 Compute differences, X i – m 0 , i = 1,2,…,n Rank the absolute differences | X i – m 0 |

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