Let {Xi} be i.i.d with the pdf f(x; θ) =c/x^(θ+1)  x > 1, where θ > 0 is the unknown parameter. (a) Determine c in term of θ. (b) Given a sample {xi}i=1,...,n, fi

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section7.6: The Inverse Trigonometric Functions
Problem 92E
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Let {Xi} be i.i.d with the pdf

f(x; θ) =c/x^(θ+1)  x > 1,

where θ > 0 is the unknown parameter.

(a) Determine c in term of θ.

(b) Given a sample {xi}i=1,...,n, find the MLE estimator θm= θm(x1, . . . , xn) for θ.

(c)Let Z =X1^(-θ)+...+Xn^(-θ),

Prove that θm and Z are independent.

Expert Solution
Step 1

Given information:

Let X1, X2, X3,…, Xn be independently and identically distributed random variables. The probability density function is as given below:

Statistics homework question answer, step 1, image 1

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