Question: 3 suppose that e4 e4 v4 and...

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(3) Suppose that E(4) θ, E(4) θ, V(4) σ. and V(0) σ3. Assume that θί and 02 are independent. Consider the following estimator: (a) Show that θ3 is unbiased for θ (b) Find the value of a that minimizes the variance of θ3 (c) which estimator would you use? θ, θ2, or 6, when using the value of a found in part (b)

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Question: 3 suppose that e4 e4 v4 and...

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