The number of degrees of freedom of the two-sample t test are the same as the degrees of freedom for the paired t test statistic.

Question

Quizplus · Accepted Answer

The two-sample t test and paired t test have different formulae for calculating the degrees of freedom, and therefore have different degrees of freedom. In the two-sample t test, the degrees of freedom is calculated as the sum of the individual degrees of freedom for each sample, while in the paired t test, the degrees of freedom is calculated as the sample size minus 1.

The Number of Degrees of Freedom of the Two-Sample T