In employing the Mann-Whitney U test, the sample data from the two populations are first combined and the ranks of the data are determined, but we keep track of which population each ranked item came from.

Question

Quizplus · Accepted Answer

The Mann-Whitney U test involves combining the data from two samples, ranking all observations together regardless of their group, and then analyzing these ranks while keeping track of the group (population) each observation belongs to.

In Employing the Mann-Whitney U Test, the Sample Data from the Two