For each of the following, find the statistic p (rounded to 3 decimal places) that would result in the given probabilities. (a) Given a null hypothesis of p = 0.58, and a sample size of n = 326, what sample proportion p do we need to have P(P < ) = 0.45? p = (b) Given a null hypothesis of p = 0.73, and a sample size of n = 90, what sample proportion p do we need to have P(P > ) = 0.21 ? = =