Chapter 8.3, Problem 14BSC

Testing Hypotheses. In Exercises 13-24, assume that a simple random sample has been selected and test the given claim. Unless specified by your instructor; use either the P-value method or the critical value method for testing hypotheses. Identify the null and alternative hypotheses, test statistic, P-value (or range of P-values), or critical value(s), and state the final conclusion that addresses the original claim.

14. Speed Dating Data Set 18 “Speed Dating” in Appendix B includes “attractive” ratings of male dates made by the female dates. The summary statistics are n = 199, $\bar{x}$ = 6.19, s = 1.99. Use a 0.01 significance level to test the claim that the population mean of such ratings is less than 7.00.