Two independent samples selected from two normally distributed populations have variances of σ₁² and σ₂² with n₁ = 10 and n₂ = 15. The degrees of freedom for the F distribution when testing the equality of the two population variances are A) 10 and 15. B) 11 and 16. C) 9 and 14. D) 8 and 13.

Question

Quizplus · Accepted Answer

n − 1 = df₁ and n − 2 = df₂ 10 − 1 = 9 15 − 1 = 14

Two Independent Samples Selected from Two Normally Distributed Populations Have