4. Recall the Maxwell scale family (Assignment 9) with pdf fe(w) = 1 1 830 " /(28-) w 30. Suppose Wi,..., W. is a random sample from this pdf. You may assume the following: E(W) = \\/BB, E(W2) = 382 and Var(W2) = 684. (a) Provide both Wald and score intervals for B. How do they compare? (b) Provide a moment estimator of / based on the mean, assess its asymptotic distribution and then use that to give an approximate level y confidence interval for B. Compare to the intervals in part (a)