Question: Problem 7.6 Let X1,...,Xn be a random sample from a normal distribution N(, 4), with unknown. Is (X1,...,Xn) = 1in (Xi ) 2

Problem 7.6 Let X1,...,Xn be a random sample from a normal distribution N(µ, 4), with µ unknown. Is ˆθ(X1,...,Xn) = 1≤i≤n (Xi − µ) 2 a statistic? Justify your answer.

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