8. [-/9 Points] DETAILS 0/20 Submissions Used MY NOTES ASK YOUR T ........ Suppose x has a distribution with # = 15 and o = 8. LA USE SALT (a) If a random sample of size n = 32 is drawn, find My, ox and P(15 s x s 17). (Round ox to two decimal places and the probability to four decimal places.) P(15 S x S 17) = (b) If a random sample of size n = 60 is drawn, find #, o and P(15 s x s 17). (Round ox to two decimal places and the probability to four decimal places.) My = OX P(15 S x S 17) = (c) Why should you expect the probability of part (b) to be higher than that of part (a)? (Hint: Consider the standard deviations in parts (a) and (b).) The standard deviation of part (b) is ---Select--- |part (a) because of the (---Select--- @|sample size. Therefore, the distribution about #, is ---Select