A statistics professor wanted to test whether the grades on a statistics test were the same for upper and lower classmen.The professor took a random sample of size 10 from each,conducted a test and found out that the variances were equal.For this situation,the professor should use a t test with related samples.

Question

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The professor should use a t test with independent samples, since the samples are from different populations (upper and lower classmen) and the variances are assumed to be equal.

A Statistics Professor Wanted to Test Whether the Grades on a Statistics