Which of the following tests would be an example of a distribution-free procedure?
A) The t test for population mean $\mu$
B) The paired t test for the expected difference $\mu _ { D }$
C) The F test for two or more population means
D) The Wilcoxon rank-sum test
E) Only A and B are correct tests

Question

Quizplus · Accepted Answer

The Wilcoxon rank-sum test is an example of a distribution-free procedure, also known as a nonparametric test, because it does not assume a specific distribution for the data.

Which of the Following Tests Would Be an Example of a Distribution-Free