For a hypothesis test comparing two population means,the combined degrees of freedom are 24.Which of the following statements about the two sample sizes is NOT true? Assume the population standard deviations are equal.
A)Sample A = 11;sample B = 13
B)Sample A = 12;sample B = 14
C)Sample A = 13;sample B = 13
D)Sample A = 10;sample B = 16

Question

Quizplus · Accepted Answer

The combined degrees of freedom for two samples with equal variances is calculated as (n1 + n2 - 2). For sample sizes 11 and 13, the degrees of freedom would be 11 + 13 - 2 = 22, not 24.

For a Hypothesis Test Comparing Two Population Means,the Combined Degrees