Given the following information,calculate the degrees of freedom that should be used in the pooled-variance t test. S₁² = 4 S₂² = 6
N₁ = 16 n₂ = 25

Question

Quizplus · Accepted Answer

The formula for degrees of freedom in a pooled-variance t-test is df = (n1-1) + (n2-1), where n1 and n2 are the sample sizes. Using the formula for each group, we get df1 = 15 and df2 = 24. Therefore, the total degrees of freedom is df1 + df2 = 39. Therefore, the correct choice is D.

Given the Following Information,calculate the Degrees of Freedom That Should