Question

The mean resting pulse rate for men is 72 beats per minute. A simple random sample of
men who regularly work out at Mitch's Gym is obtained and their resting pulse rates (in
beats per minute) are listed below. Use a 0.05 significance level to test the claim that these
sample pulse rates come from a population with a mean less than 72 beats per minute.
Assume that the standard deviation of the resting pulse rates of all men who work out at
Mitch's Gym is known to be 6.6 beats per minute. Use the traditional method of testing
hypotheses.
54 59 69 84 74 64 69
70 66 80 59 71 76 63

Answer 1

H0: µ = 72 beats per minute H1: µ < 72 beats per minute Test statistic: z = -1.94 Critical-value: z = -1.645 Reject H0; At the 5% significance level, there is sufficient evidence to support the claim that .these sample pulse rates come from a population with a mean less than 72 beats per minute.