Refer to Exercise 2.CE.9.
a. Based on the test results found in Exercise 2.CE.9, part (b), if you are testing at a significance level of 5% and you have made an error, what type of error have you made? (Type I or Type II?)
b. If you are testing at the 5% level of significance and you have made a Type II error, what can you say about the p-value of the test?
c. Name two ways in which you could decrease the probability of a Type I error.

In exercise 2.CE.9

Body temperatures were measured on a random sample of 20 females and 20 males applying for health insurance. Together, their average temperature was 98.8°F with a standard deviation of 0.2°F.