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I wonder how to solve this question 9. (Optional) Let X1, ..., X, be a random sample from a population with pdf 0-le-(2-0)/0 f(x|0) =

I wonder how to solve this question

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9. (Optional) Let X1, ..., X, be a random sample from a population with pdf 0-le-(2-0)/0 f(x|0) = x20, 0, otherwise, where 0 > 0. (1) Find a statistic that is minimal sufficient for 0 and prove the minimal sufficiency. (2) Does f(x|0) belong to the exponential family

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