Which of the following is the correct null hypothesis for a repeated-measures t test?
A)MD = 0
B)µD = 0
C)µ1 = µ2
D)M1 = M2

Question

Quizplus · Accepted Answer

The correct null hypothesis for a repeated-measures t test is that there is no difference between the means of two related groups, which can be expressed as the mean difference (µD) being equal to zero. Therefore, choice B (µD = 0) is the correct option. Choice A (MD = 0) is incorrect because it does not specify that the means are related, while choices C (µ1 = µ2) and D (M1 = M2) are incorrect because they do not account for the fact that the means are from the same group at different time points or conditions.

Which of the Following Is the Correct Null Hypothesis for a Repeated-Measures