Which of the following is the correct null hypothesis for an independent-measures t test?
A)μ1 - μ2 = 0
B)M1 - M2 = 0
C)μ1 - μ2 ≠ 0
D)M1 - M2 ≠ 0

Question

Quizplus · Accepted Answer

The correct null hypothesis for an independent-measures t test is that there is no difference between the means of the two groups being compared. This is represented by the equation μ1 - μ2 = 0, where μ1 and μ2 are the population means of the two groups. Therefore, choice A is the correct answer. Choice B is incorrect because M is used to represent the sample mean, whereas the t test is concerned with population means. Choices C and D are incorrect because they represent alternative hypotheses, which state that there is a difference between the means of the two groups being compared.

Which of the Following Is the Correct Null Hypothesis for an Independent-Measures