For each of the following hypotheses, create a chart that shows the four possible outcomes that could occur as a result of hypothesis testing. There should be two correct decisions and two incorrect decisions. Label the type of error for each of the incorrect decisions.

a. A new reading program in the elementary schools is hypothesized to improve reading comprehension.

b. People who take at least two vacations each year are happier, on average, than people who do not take at least two vacations per year.

c. A college student cramming for finals hypothesizes that caffeine improves his ability to concentrate.