Which Statistical Technique Is Appropriate When We Compare Two or More

Short Answer

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.