The Wilcoxon signed rank test is used to test hypotheses about the population median.

Question

Quizplus · Accepted Answer

The Wilcoxon signed rank test is a non-parametric statistical test used to compare two related samples, matched samples, or repeated measurements on a single sample to assess whether their population mean ranks differ. It can be used as an alternative to the paired Student's t-test when the population cannot be assumed to be normally distributed. It is indeed used to test hypotheses about differences in medians when the assumptions for the parametric paired t-test are not met.

The Wilcoxon Signed Rank Test Is Used to Test Hypotheses