One of the assumptions associated with the Wilcoxon Matched-Pairs Signed Rank test is that the distribution of the population differences is symmetric about their median.

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The Wilcoxon Matched-Pairs Signed Rank test assumes that the differences between paired observations are symmetrically distributed around their median, which is crucial for the validity of the test.

One of the Assumptions Associated with the Wilcoxon Matched-Pairs Signed