Body Temperatures In Section 7-4, we tested the claim that the mean body temperature is equal to 98.6°F, and we used sample data given in Data Set 4 in Appendix B.

The body temperatures taken at 12:00 AM on day 2 can be summarized with these statistics: n 5 106, 5 98.20°F, s 5 0.62°F, and a histogram shows that the values have a distribution that is approximately normal. In Section 7-4 we assumed that s 5 0.62°F, which is an unrealistic assumption. However, the test statistic will cause rejection of m 5 98.6°F as long as the standard deviation is less than 2.11°F. Use the sample statistics and a 0.005 significance level to test the claim that s , 2.11°F.