A chi-squared test of a contingency table 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.

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Quizplus · Accepted Answer

The degrees of freedom for a chi-squared test of a contingency table are calculated by (number of rows - 1) x (number of columns - 1). Therefore, in this case, the degrees of freedom would be (3-1) x (4-1) = 6, not 12.

A Chi-Squared Test of a Contingency Table Is Applied to a Contingency