A population of values has a normal distribution with u= 177.4 and = 91.8. A random sample of size n = 37 is drawn. a. Find the probability that a single randomly selected value is between 157.8 and 209.1. Round your answer to four decimal places. P(157.8 X < 209.1) = b. Find the probability that a sample of size n = 37 is randomly selected with a mean between 157.8 and 209.1. Round your answer to four decimal places. P(157.8