2 Suppose that Y₁, Y₂, .. Yn denote a random sample of size n from a normal dis- tribution with mean u and variance 1. Consider the first observation Y₁ as an estimator for . a. Show that Y₁ is an unbiased estimator for μ. b. Find P(|Y₁ - µ|) ≤ 1 c. Based on the result of part (b), is Y₁ a consistent estimator for µ?

Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter13: Probability And Calculus
Section13.2: Expected Value And Variance Of Continuous Random Variables
Problem 10E
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Suppose that Y₁, Y₂ , . . . , Yn denote a random sample of size n from a normal dis-
tribution with mean µ and variance 1. Consider the first observation Y₁ as an estimator
for μ.
a. Show that Y₁ is an unbiased estimator for u.
b. Find P(|Y₁ − µ|) ≤ 1
c. Based on the result of part (b), is Y₁ a consistent estimator for u?
Transcribed Image Text:Suppose that Y₁, Y₂ , . . . , Yn denote a random sample of size n from a normal dis- tribution with mean µ and variance 1. Consider the first observation Y₁ as an estimator for μ. a. Show that Y₁ is an unbiased estimator for u. b. Find P(|Y₁ − µ|) ≤ 1 c. Based on the result of part (b), is Y₁ a consistent estimator for u?
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ISBN:
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