A researcher reports an independent-measures t statistic with df = 30.If the two samples are the same size (n₁ = n₂),then how many individuals are in each sample? A)n = 15 B)n = 16 C)n = 30 D)n = 31

Question

Quizplus · Accepted Answer

For an independent-measures t-test with equal sample sizes, the degrees of freedom (df) can be calculated as df = 2n - 2, where n is the sample size. 
Here, df = 30, so 30 = 2n - 2. 
Solving for n, we get n = 16. 
Therefore, the best choice is B, with a sample size of n = 16.

A Researcher Reports an Independent-Measures T Statistic with Df =