Question: 3. Let X1, . . . , Xn be a sample from a normal , 2 population. Determine the maximum likelihood estimator of 2 when

3. Let X1, . . . , Xn be a sample from a normal μ, σ2 population. Determine the maximum likelihood estimator of σ2 when μ is known. What is the expected value of this estimator?

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