The nonparametric test for a single population median is known as the ________.
A) Wilcoxon signed-rank test
B) Wilcoxon rank-sum test
C) Kruskal-Wallis test
D) Wald-Wolfowitz runs test

Question

Quizplus · Accepted Answer

The Wilcoxon signed-rank test is used to test the hypothesis that a sample of paired observations comes from a population where the median of the differences between the pairs is zero. It is a nonparametric test that does not assume any distributional properties of the data. The Wilcoxon rank-sum test, Kruskal-Wallis test, and Wald-Wolfowitz runs test are all nonparametric tests, but they are not specifically designed to test the population median of a single sample.

The Nonparametric Test for a Single Population Median Is Known