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

Question

Quizplus · Accepted Answer

The chi-square goodness-of-fit test is used to determine if a sample data matches a population. For qualitative data with multiple categories within a single population, this test is appropriate to see if the observed frequencies differ from the expected frequencies under a specific hypothesis.

Which Statistical Technique Is Appropriate When We Describe a Single