Let X1, . .., Xn ~ iid Exp(/), and we consider two estimators the MLE 0 = Xn and 8(x) = nX(1). (a) Find the sampling distribution of the estimator d(x) = nX(1). (b) Determine the bias of these two estimators. (c) Compare the MSE of the two estimators. (d) Why was it obvious that I would dominate d(x) before performing the calculations in (b)