Cholesterol:An article in theArchives of Internal Medicinereported that in a sample of 242 men, 69 had elevated total cholesterol levels (more than 200 milligrams per deciliter). In a sample of 236 women, 40

had elevated cholesterol levels. Can you conclude that the proportion of people with elevated cholesterol levels differs between men and women? Let p1 denote the proportion of men with elevated cholesterol levels and p2

denote the proportion of women with elevated cholesterol levels. Use the

a= 0.05

level of significance and the

P

-value method with the TI-84 Plus calculator.

Part 1

Find the P-value. Round the answer to four decimal places.

P -value =

part 2 Do we reject or fail to reject the hypothesis?

Part 3 : State the conclusion. Do we have enough evidence?