Which of the following statements about hypothesis tests is INCORRECT?
Select one:
a. The claim can be either H0 or H1.
b. In a one-tailed test, H1 involves either ">" or "<", but not "≠".
c. If the test statistic lies in the rejection region, we reject the claim.
d. H0 must always include equality.
e. The critical value indicates the start of the rejection region.