When testing for the difference between two population variances with sample sizes of n₁ = 8 and n₂ = 10, where n₁ has the larger variance, the number of degrees of freedom are
A) 8 and 10.
B) 7 and 9.
C) 18.
D) 16.

Question

Quizplus · Accepted Answer

When testing for the difference between two population variances with unequal sample sizes, and assuming that the variances are not equal, the number of degrees of freedom is given by (n₁ - 1) and (n₂ - 1), where n₁ is the sample size with the larger variance. Therefore, in this case, the number of degrees of freedom for the F-test is 7 and 9.

When Testing for the Difference Between Two Population Variances with Sample