Homework: ... Question 69, 7.2.35-T HW Score: 76.44%, 100.13 of 131 points Part 2 of 3 Save Points: 0.6 of 3 The pulse rates of 144 randomly selected adult males vary from a low of 35 bom to a high of 111 bpm. Find the minimum sample size required to estimate the mean pulse rate of adult males. Assume that we want 99% confidence that the sample mean is within 3 bom of the population mean. Complete parts (a) through (c) below. a. Find the sample size using the range rule of thumb to estimate o. n = 267 (Round up to the nearest whole number as needed.) b. Assume that o = 11.5 bpm, based on the value s = 11.5 bpm from the sample of 144 male pulse rates. n = (Round up to the nearest whole number as needed.)