When applying the Wilcoxon signed rank test, the number of ties should be small relative to the
number of observations to ensure the validity of the test.

Question

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The Wilcoxon signed rank test assumes that ties (observations with the same value) are rare. A large number of ties can affect the distribution of the test statistic, potentially leading to inaccurate results.

When Applying the Wilcoxon Signed Rank Test, the Number of Ties