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Using a long rod that has length μ you are going to lay out a square plot in which the length of each side is Thus the area of the plot will be However, you do not know the value of μ, so you decide to make n independent measurements X1,X2, ,X, of the length. Assume that each Xi has mean μ and variance σ Show that X 2 is not an unbiased estimator for μ2 What is the bias? Does X2 underestimate or overestimate μ For what value of k is the estimator-2-ks unbiased for μ2? b)

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E(x; om (po rt fix*)=ふthem we said that is ya overestimate 하, ul becauuse. bias is tasitive (m) pose what value 2

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