Suppose that you want to compare the mean values of two independent groups (group 1 and group 2). Your hypothesis is whether the mean of group 1 is larger than the mean of group 2. Select the correct hypothesis.
a. H0: μ1 ≠ μ2, Ha: μ1 = μ2
b. H0: μ1 = μ2, Ha: μ1 ≠ μ2
c. H0: μ1 ≤ μ2, Ha: μ1 > μ2
d. H0: μ1 < μ2, Ha: μ1 > μ2
