For the sample data in Example 1 "Adult Sleep" from this section, Minitab and Stat-Crunch show that the hypothesis test has power of 0.4943 of supporting the claim that m 6 7 hours of sleep when the actual population mean is 6.0 hours of sleep. Interpret this value of the power, then identify the value of b and interpret that value. (For the t test in this section, a "non-centrality parameter" makes calculations of power much more complicated than the process described in Section 8-1, so software is recommended for power calculations.)

Use the data set from Appendix B to test the given claim. Use the P-value method unless your instructor specifies otherwise.