D Question 6 4 pts John wishes to estimate the population standard deviation of salary of college graduates who took a statistics course in college. How many college graduates must he survey? Assume that he wants to be the sample standard deviation to be within 30% of the population standard deviation and to be 99% confident of that statement. D Question 7 16 pts 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 0.01 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). Use the critical value method of testing hypotheses. 53 52 80 49 52 68 72 78 68 75 77 61 Enter the smallest critical value. (Round your answer to nearest thousandth.)