If we want to perform a two-tail test for differences between two populations of nominal data with exactly two categories, we can employ either the z-test of , or the chi-square test of homogeneity, since squaring the value of the z statistic yields the value of statistics.

Question

If we want to perform a two-tail test for differences between two populations of nominal data with exactly two categories, we can employ either the z-test of  , or the chi-square test of homogeneity, since squaring the value of the z statistic yields the value of  statistics.

Quizplus · Accepted Answer

This statement is true. Both the z-test and the chi-square test of homogeneity are appropriate for comparing two populations of nominal data with two categories, and squaring the z statistic yields the chi-square statistic. Therefore, either test can be used for a two-tail test for differences between two populations of such data.

If We Want to Perform a Two-Tail Test for Differences