Select the null and alternative hypotheses to test the claim that the mean starting salary for college graduates who have taken statistics is $46,000. A sample of 35 graduates gave a mean salary of $45,678 with a standard deviation of $822. H : M = 45678 H : u = 45678 H : M = 46000 H. : M = 46000 H : M = 46000 a ) b ) H : u + 45678 H : u 46000 e) H : u + 46000