A mens suiting store has 3 branches in Lexington, Kentucky, with charge accounts arranged by the branch. Each branch has overdue accounts at the front of each branchs list of accounts. Suppose each branch averages about 20 accounts each, with approximately 25% past-due accounts. On a particular day, the delinquent proportion of overdue accounts via systematic sampling.a) List all possible systematic samples of size5, and compute the population variance of the estimated proportion of delinquent accounts using systematic sampling.b) Compare the variances of this systematic approach with the variance of a simple random sample of the same size for the proportion.