Answer question b

The pulse rates of 171 randomly selected adult males vary from a low of 37 bom to a high of 113 bpm. Find the minimum sample size required to estimate the mean pulse rate of adult males. Assume that we want 90% confidence that the sample mean is within 2 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 = 243 (Round up to the nearest whole number as needed.) b. Assume that o = 11.2 bom, based on the value s = 11.2 bom from the sample of 171 male pulse rates. (Round up to the nearest whole number as needed.)