Suppose x has a distribution with u = 26 and o = 23. LO USE SALT (a) If a random sample of size n = 49 is drawn, find us, o - and P(26 s x s 28). (Round or to two decimal places and the probability to four decimal places.) P ( 26 5 X S 28 ) = (b) If a random sample of size n = 56 is drawn, find us, o - and P(26 S x S 28). (Round o - to two decimal places and the probability to four decimal places. ) = P ( 26 S X S 28) = (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 u- is ---Select--- Watch It