The answer on other websites is different by a single question. So do not copy that answer over if you find it elsewhere. Please help me actually answer the question below.

5. (9 pt) Suppose Y1, Yz, ..., Y" constitute a random sample from an exponential distribution with parameter , [5' > 0. a. (5) Consider = 5 E as an estimator for . Is 3' an unbiased estimator for ? Why or why not? Find the bias of ['35 as an estimator for if it is not unbiased. Find the maximum likelihood estimator for ,6 . b. (4) Can you use Theorem 9.1 or Week Law of Large Numbers to determine if b" = 5 Y" is a consistent estimator for ? Explain