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

Question

Quizplus · Accepted Answer

The chi-squared test of a contingency table is appropriate for comparing two or more populations of qualitative data with two or more categories. This test determines whether there is a significant association between the variables being compared. The other options, such as the z-test, are appropriate for comparing two populations with binary (yes/no) data, and the chi-squared goodness-of-fit test is appropriate for testing whether an observed distribution fits an expected distribution.

Which Statistical Technique Is Appropriate When We Compare Two or More