Which of the following is used to compare the medians from two samples?
A)Mann-Whitney U
B)Wilcoxon rank test
C)Kruskal-Wallis one-way ANOVA
D)the sign test

Question

Quizplus · Accepted Answer

The Mann-Whitney U test, also known as the Wilcoxon rank-sum test or the Mann-Whitney-Wilcoxon test, is used to compare the medians from two independent samples. Option B, the Wilcoxon rank test, is used to compare the medians of two related samples, while option C, the Kruskal-Wallis one-way ANOVA, is used to compare medians from three or more independent samples. Option D, the sign test, is used to compare medians of two related samples when the data is not normally distributed.

Which of the Following Is Used to Compare the Medians