If we use the body temperatures from 8 AM on Day 2 as listed in Data Set 3 “Body Temperatures” in Appendix B, we get the statistics given in the accompanying table. Use these data with a 0.05 significance level to test the claim that men have body temperatures that vary more than the body temperatures of women.

Data Set 3: Body Temperatures

Body temperatures (oF) are from 107 subjects taken on two consecutive days at 8 AM and 12 AM (first five rows shown here). SEX is gender of subject, and SMOKE indicates if subject smokes (Y) or does not smoke (N). Data provided by Dr. Steven Wasserman, Dr. Philip Mackowiak, and Dr. Myron Levine of the University of Maryland.