The formula for the degrees of freedom for the single-sample t test is: A) N. B) df_X + df_Y_. C) N - 1. D) (N - 1)(N - 1).

Question

Quizplus · Accepted Answer

The formula for degrees of freedom for the single-sample t test is df = N - 1, where N is the sample size. This is because one degree of freedom is lost when estimating the sample mean from the data, leaving N-1 degrees of freedom. Option A is incorrect because N is the sample size, not the degrees of freedom. Option B is incorrect because it is not a valid formula for finding degrees of freedom for the single-sample t test. Option D is incorrect because (N-1)(N-1) is not a valid method for calculating degrees of freedom for the single-sample t test.

The Formula for the Degrees of Freedom for the Single-Sample