Question: Let X1, ..., Xn be a random sample. a) (40 Points) If the sample is from a Poisson pmf with mean lamda, show that x

Let X1, ..., Xn be a random sample.

a) (40 Points) If the sample is from a Poisson pmf with mean lamda, show that x" is an efficient estimator

of lambda .

b) (40 Points) If the sample is from a normal pdf with mean and variance s2, show that x" is an

efficient estimator of .

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