7. Use the t-distribution and the sample results to complete the test of the hypotheses. Use a 5% significance level. Assume the results come from a random sample, and if the sample size is small, assume the underlying distribution is relatively normal. Test Ha: U = 15 vs H,: p > 15 using the sample results x = 17.2, s = 6.4, with n = 40. a. Briefly state why this sample satisfies the CLT requirements. b. Find the test statistic. Show all work for full credit. Round to two decimal places. c. Find the p-value. Include a Statkey pic or provide a sketch that supports your answer. d. Give the formal decision for this test based on your p-value in part c. Provide a general conclusion for this test