Question: Suppose we measure length of hospital stay (in days) for patients undergoing a particular surgical procedure. The length of hospital stay is assumed to be distributed in the population with a mean of 3 days and a standard deviation of 3.2 days. Do you think that the parent (underlying) population for length of hospital days in normally distributed? Justify your answer. a.) If a sample of 35 patients is selected, what is the probability that their sample mean length of stay is less than 2 days? b.) If a sample of 35 patients is selected, what is the probability that their sample mean length of stay is more than 5 days?