Answer to Question #79709 in Statistics and Probability for angiebrooks

Question

A new diet program claims that participants will lose an average at least eight pounds during the week of the program. a random sample of 40 people participating in the program showed a sample mean weight loss of seven pounds. the sample standard deviation was 3.2 pound.
1) what is the rejection rule with a=0.05
2) What is your conclusion about the claim made by the diet program
3) what is the p-value