Which of the following tests is appropriate for nominal data if the problem objective is to compare two populations and the number of categories exceeds 2? A) The z-test for one proportion,p,or difference of two proportions,p₁ -p₂. B) The chi-squared goodness-of-fit test. C) The chi-squared test of a contingency table. D) All of these choices are true.

Question

Quizplus · Accepted Answer

The chi-squared test of a contingency table is appropriate for nominal data when comparing two populations with more than two categories. The chi-squared goodness-of-fit test is used when comparing one population to an expected distribution and the z-test for proportions is used for comparing two populations with binary outcomes. Therefore, choice C is the best option.

Which of the Following Tests Is Appropriate for Nominal Data