題組內容
5. Let X1,X2,..... Xn be a random sample from the normal distribution N(θ,1).
(b) If Var
. Does the variance of
attain the Cramer- Rao lower bound for estimating θ2? Give your reason. (10%)
5. Let X1,X2,..... Xn be a random sample from the normal distribution N(θ,1).
(b) If Var
. Does the variance of
attain the Cramer- Rao lower bound for estimating θ2? Give your reason. (10%)