Using two independent samples, two population means are compared to determine if a difference exists. The number in the first sample is fifteen and the number in the second sample is twelve. How many degrees of freedom are associated with the critical value?
A) 24
B) 25
C) 26
D) 27
E) None of these statements is correct

Question

Quizplus · Accepted Answer

The degrees of freedom for comparing two independent sample means is calculated as (n1 + n2 - 2), where n1 and n2 are the sample sizes. Therefore, 15 + 12 - 2 = 25.

Using Two Independent Samples, Two Population Means Are Compared to Determine