The Wilcoxon signed-rank test should be used in place of its parametric equivalent when the data is non-normal or on an ordinal scale

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The Wilcoxon signed-rank test is a nonparametric test that is used when the data is not normally distributed or on an ordinal scale. Therefore, it is a suitable alternative to parametric tests like the paired t-test, which assume normality and interval data.

The Wilcoxon Signed-Rank Test Should Be Used in Place of Its