Consider a random sample of size n from a distribution with pdf

if and and otherwise.

a)Find a complete sufficient statistic for

b)Find the maximum likelihood estimator of

c)Find the Cramer-Rao Lower Bound for

d)Find the Uniformly Minimum Variance Unbiased Estimator for

e)Find the Uniformly Minimum Variance Unbiased Estimator for

(f) Find the Cramer-Rao Lower Bound for

please help solve these questions