In the Chi square test,degrees of freedom are A)N - 1. B)N₁ + N₂ - 2. C)(r + 1)(c + 1). D)(r - 1)(c - 1).

Question

Quizplus · Accepted Answer

The degrees of freedom (df) in a chi-square test is calculated by (r-1)(c-1), where r is the number of rows and c is the number of columns in the contingency table. Therefore, choice D is the correct answer. Choice A is incorrect because it assumes that the number of degrees of freedom is simply equal to the sample size minus one. Choices B and C are incorrect because they do not accurately account for the number of rows and columns in the contingency table.

In the Chi Square Test,degrees of Freedom Are