# Cramer Rao Lower Bound

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Given a random sample of size n from a normal distribution N(lambda,lambda) - ie mean =lambda and variance =lambda -

If X.bar is used to estimate lambda, show that X.bar exceeds the Cramer - Rao lower bound

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#### Solution Summary

The solution contains the determination of Cramer-Rao lower bound for the sample mean from a Normal population.

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