Which statistical technique is appropriate when we compare two populations of nominal data with exactly two categories?
A)The z-test of a population proportion.
B)The z-test of the difference between two proportions.
C)The chi-squared test of a contingency table.
D)The z-test of a population proportion and the z-test of the difference between two proportions.
E)The z-test of the difference between two proportions and the chi-squared test of a contingency table.

Question

Quizplus · Accepted Answer

The z-test of the difference between two proportions and the chi-squared test of a contingency table are both appropriate for comparing two populations of nominal data with two categories.

Which Statistical Technique Is Appropriate When We Compare Two Populations