QUESTION 4

1. Which of the following situations would call for a one-tailed test (versus a two-tailed test)? (Check all that apply.)

A		You want to test if boys score higher than girls on a reading test.
B		You want to test if teachers who receive a pay raise are more satisfied at work.
C		You want to test if people who rent versus buy their homes have different incomes.
D		You want to test if people who go to therapy are less depressed than people who do not.