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 0.1 significance level to test the claim that these sample pulse rates come from a population with a mean less than 72 beats per minute (the mean resting pulse rate for men). Assume that the standard deviation of the resting pulse rates of all men who work out at Mitch's Gym is known to be 8 beats per minute. Use the critical value method of testing hypotheses. 64 63 49 52 71 70 67 67 54 52 71 72 Enter the test statistic. (Round your answer to nearest hundredth.)

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