Two samples,one of size 14 and the second of size 13,are selected to test the difference between two population means. How many degrees of freedom are used to find the critical value? Assume the population standard deviations are equal.
A)27
B)26
C)25
D)14

Question

Quizplus · Accepted Answer

The degrees of freedom are calculated using the formula df = (n1 - 1) + (n2 - 1), where n1 and n2 are the sample sizes. So, in this case, df = (14 - 1) + (13 - 1) = 25. Therefore, the correct choice is C) 25.

Two Samples,one of Size 14 and the Second of Size