A chi-square test for independence is applied to a contingency table with 3 rows and 4 columns for two qualitative variables. The degrees of freedom for this test must be 12.

Question

Quizplus · Accepted Answer

The degrees of freedom for a chi-square test for independence with a contingency table of 3 rows and 4 columns should be (number of rows - 1) x (number of columns - 1) = 2 x 3 = 6, not 12.

A Chi-Square Test for Independence Is Applied to a Contingency