91影视

Female Pulse Rates and Age Using the pulse rates of females from Data Set 1 鈥淏ody Data鈥� in Appendix B after they are partitioned into the three age brackets of 18鈥�25, 26鈥�40, and 41鈥�80, we get the following Statdisk display. Using a 0.05 significance level, test the claim that females from the three age brackets have the same mean pulse rate. What do you conclude?

Estimating Length Using the same results displayed in Exercise 8, does it appear that the length estimates are affected by the sex of the subject?