8 A Physical Therapist Wanted To Know Whether The Mean Step Pulse Of Men Was Less Than The Mean Step Pulse Of Women Sh 1 (31.14 KiB) Viewed 41 times
8 A Physical Therapist Wanted To Know Whether The Mean Step Pulse Of Men Was Less Than The Mean Step Pulse Of Women Sh 2 (11.9 KiB) Viewed 41 times
8 A Physical Therapist Wanted To Know Whether The Mean Step Pulse Of Men Was Less Than The Mean Step Pulse Of Women Sh 3 (15.47 KiB) Viewed 41 times
8. A physical therapist wanted to know whether the mean step pulse of men was less than the mean step pulse of women. She randomly selected 55 men and 95 women to participate. Each subject was required to step up and down onto a 6-inch platform for 3 minutes. The pulse of each subject was then recorded. The data is given below. Men Women Sample Size 55 95 Mean 118 126 Standard Deviation 10.4 12.1 a) Find a 99% Confidence Interval for the mean difference in pulse rates for men and women. b) Test whether there is a difference in mean pulse rates for men and women at 1% level of significance.
c) Test whether there is a difference in mean pulse rates for men and women at 5% level of significance. d) Compare your conclusions from part b and part c.
e) Find a 95% Confidence interval for the mean difference in pulse rates for men and women. f) Find a 90% Confidence interval for the mean difference in pulse rates for men and women.
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