3. Let X₁,..., X₁, be iid random variables following density function aba xa+I, f(x; a) = x> b, with the unknown parameter a > 2 and known b>0. Its expectation and variance follow E(X) = ab/(a− 1) and Var(X) = b²a/{(a − 1)² (a − 2)}. (a) Show that the MLE of a equals âMLE = n/₁ log(X;/b). (b) Calculate the asymptotic variance of âMLE. (d) Find the MLE of EX. (c) Find the 100(1 – a) % asymptotic confidence interval of a. (e) Find the Cramér-Rao lower bound for EX

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3. Let X₁,..., X, be iid random variables following density function
aba
xa+Ī,
f(x; a) =
=
x>b,
with the unknown parameter a > 2 and known b > 0. Its expectation
and variance follow E(X) = ab/(a− 1) and
Var (X) = b²a/{(a − 1)² (a − 2)}.
(a) Show that the MLE of a equals âMLE = n/₁ log(X;/b).
(b) Calculate the asymptotic variance of âMLE.
(d) Find the MLE of EX.
(c) Find the 100(1 − a)% asymptotic confidence interval of a.
(e) Find the Cramér-Rao lower bound for EX
Transcribed Image Text:3. Let X₁,..., X, be iid random variables following density function aba xa+Ī, f(x; a) = = x>b, with the unknown parameter a > 2 and known b > 0. Its expectation and variance follow E(X) = ab/(a− 1) and Var (X) = b²a/{(a − 1)² (a − 2)}. (a) Show that the MLE of a equals âMLE = n/₁ log(X;/b). (b) Calculate the asymptotic variance of âMLE. (d) Find the MLE of EX. (c) Find the 100(1 − a)% asymptotic confidence interval of a. (e) Find the Cramér-Rao lower bound for EX
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