The smoking rate for the entire U.S. population of adults is 32% (National Institute on Drug Abuse). Suppose that for a sample of 80 fine arts students over 21 years old, the smoking rate is 30%. Test the claim (at the 1% level of significance) that the smoking rate for fine arts students is less than the national average.
a. State the null and alternate hypothesis using correct symbolization.
b. Include a copy of the Minitab Printout for this test.
c. Give the p-value.
d. Based on the p-value, give your conclusion and explain your reasoning.