Question: Question 1 (6 points): Let X1,X2 ~iid continuous random variables with mean u and variance oz. a. Are (0.1X1+0.9X2) and (0.5X1 + 0.5X2) unbiased estimators

Question 1 (6 points): Let X1,X2 ~iid continuous random variables with mean u and variance oz. a. Are (0.1X1+0.9X2) and (0.5X1 + 0.5X2) unbiased estimators of u? Justify your answer and show your work (3 points). b. Is (0.1X1+0.9X2) a more efficient estimator of u than (0.5X1+ 0.5X2)? Justify your answer and show your work (3 points)

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