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

Question

Quizplus · Accepted Answer

The chi-squared test of a contingency table is appropriate for comparing two or more populations of nominal data with two or more categories. This test compares the observed frequencies in a contingency table to the frequencies that would be expected if there were no association between the two variables being studied. The other options presented are not appropriate for nominal data or do not allow for comparison of multiple populations.

Which Statistical Technique Is Appropriate When We Compare Two or More