The independent random variables X 1 ,..., X n have the common distribution where the parameters

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The independent random variables X1,..., Xn have the common distribution

where the parameters α and β are positive.

a. Find a two-dimensional sufficient statistic for (α, β).

b. Find the MLEs of α and β.

c. The length (in millimeters) of cuckoos’ eggs found in hedge sparrow nests can be modeled with this distribution. For the data

22.0, 23.9, 20.9, 23.8, 25.0, 24.0, 21.7, 23.8, 22.8, 23.1, 23.1, 23.5, 23.0, 23.0,

find the MLEs of α and β.

Distribution
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Statistical Inference

ISBN: 978-0534243128

2nd edition

Authors: George Casella, Roger L. Berger

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