If X1,X2,...,Xn is a random sample from a distribution with pdf
dr.two
Question
If X1,X2,...,Xn is a random
sample from a distribution with pdf
f(x;θ)=
0<∞,0<θ<∞ , the pdf is equal
to 0 elsewhere.
Show that Y=2(X-bar) is an unbiased estimator of θ and determine
its efficiency.
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