Lori jeffrey is a successful sales representative for a major publisher of college textbooks. historically, lori obtains a book adoption on 25% of her sales calls. viewing her sales calls for one month as a sample of all possible sales calls, assume that a statistical analysis of the data yields a standard error of the proportion of .0625.a. how large was the sample used in this analysis? that is, how many sales calls did lori make during the month? b. let p¯ indicate the sample proportion of book adoptions obtained during the month. show the sampling distribution of p¯.c. using the sampling distribution of p¯, compute the probability that lori will obtainbook adoptions on 30%or more of her sales calls during a one-month period.