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Problem if 11 I ate: (Important to draw the bell curve. Points will be deducted for failure to (lo so). In a recent year, MCAT scores were normally distributed, with amean of 500 and a standard deviation of 10.6 Find the probability that a randomly selected medical student who took the MCAT has a total score that is 12 a) Less than 489 b) Between 495 and 507 c) More than 522 13 Problem if 12 114 gts] Because cardiac deaths appear to increase after heavy snowfalls, an experiment was designed to compare cardiac demands of snow shoveling to those of using an electric snow thrower. Ten subjects cleared tracts of snow using both methods, and their maximum heart rates (beats per minute) were recorded during both activities. The following results were obtained (based on data from \"Cardiac Demands of Heavy Snow Shoveling," by Franklin et 3L, Journal of the American Medical Association, Vol. 273, No. 11): Manual Snow Shoveling Maximmn Heart Rates: n = 10, i = 175, s = 15 Electric Snow Thrower Maximum Heart Rates: in = 10, ;= 124, s = 18 Construct a 95 % 'condence interval estimate of the population mean for those who did manual snow shoveling