When conducting a t test for independent means,a typical research hypothesis might be
A)the mean of Population 1 is greater than the mean of Population 2.
B)the mean of Sample 1 is greater than the mean of Sample 2.
C)the mean of Population 1 is the same as the mean of Population 2.
D)the mean of Sample 1 is the same as the mean of Sample 2.

Question

Quizplus · Accepted Answer

The typical research hypothesis for a t test for independent means is that the mean of Population 1 is greater than the mean of Population 2. This is because the t test is used to compare the means of two different populations, and the research hypothesis is usually focused on determining if there is a significant difference between the populations. Option B is incorrect because the t test is not used to compare sample means, but population means. Option C and D are also incorrect because the research hypothesis is not focused on determining if the means are the same, but rather if they are different.

When Conducting a T Test for Independent Means,a Typical Research