Which of the following is a "robust" test procedure against the violation of distribution assumptions?
A) X²-test of independence
B) McNemar test for the difference between two proportions
C) X²-test for the differences among more than two proportions
D) Wilcoxon rank sum test for difference in medians

Question

Quizplus · Accepted Answer

The Wilcoxon rank sum test does not assume that the data follows a specific distribution, making it robust against violations of distribution assumptions. The X²-test of independence assumes that the data follows a binomial distribution, the McNemar test assumes a binomial distribution for paired samples, and the X²-test for differences among proportions assumes a multinomial distribution.

Which of the Following Is a "Robust" Test Procedure Against