Question: I need a solution to this question. 1. (20 points) Let X1, ..., X, be a sample from a Poisson distribution with parameter 0 =

I need a solution to this question.

1. (20 points) Let X1, ..., X, be a sample from a Poisson distribution with parameter 0 = E(X). where 0 > 0. (a) Show directly that En , X; is sufficient for 0. (b) Establish the same result using the factorization Theorem

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