A chi-square test for independence produces a chi-square statistic with df = 2.The data for this research study form a 2×2 matrix with four separate categories.

Question

Quizplus · Accepted Answer

If the chi-square statistic has df = 2, it means that the data form a contingency table with at least three categories in at least one of the variables. Therefore, the data for this research study cannot form a 2×2 matrix with only four separate categories.

A Chi-Square Test for Independence Produces a Chi-Square Statistic with Df