. Let Y1, Y2, . . . ._ Ya denote a rand-0111 sample of size n. from a population whose density is given by ayeifs\" n '1] is a known, xed value, but 3 is unknown. Consider the estimator :9 :Inax(Y1, Y2: . . . ,K. a. Show that 2'? is a biased estimator for 9. b. Find a multiple of A that is an unbiased estimator of d. c. Derive MSE(@)