Cramer Rao Bound

Consider a random sample of size n from a Bernoulli distribution, Xi ~ BIN (1,p).

(a) Find the CRLB (Cramero-Rao Lower Bound) for the variances of unbiased estimators of p.

(b) Find the CRLB for the variances of unbiased estimators of p(1-p).

(c) Find a UMVUE of p.

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