Let X1, X2 denote a random sample from a population having a mean mu and a variance sigma squared. Consider the following estimator of mu. ê, = X, + 2X2 • Is this estimator Biased or unbiased? biased • Suppose the mu of the population is equal to 2 and the variance of the population is =1. • What is the value of bias? 2mu • What is the MSE of this estimator? 0.5 Round to 1 decimal place Answer 1: biased Answer 2: 2mu 4 Answer 3:

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