Let X₁, ..., X be a random sample from a population with mean μ, and variance of o. Let 1' m Y₁, Y be a random sample from a population with mean μ₂ and variance o. We will also assume that the Xs and Ys are independent of each other. *** X Y 7.2 9.2 6.6 6.1 5.8 7.1 7.8 7.8 8.1 7.4 8.5 8.9 9.8 9.7 8.3 7.0 8.3 14.1 12.6 11.2 1. Show that X - Y is an unbiased estimator for μ₁ - ₂. 2. Find the variance of X - Y. 3. Show whether X - Y is a consistent estimator for μ-₂. Hint: Both sample sizes must become large.
Let X₁, ..., X be a random sample from a population with mean μ, and variance of o. Let 1' m Y₁, Y be a random sample from a population with mean μ₂ and variance o. We will also assume that the Xs and Ys are independent of each other. *** X Y 7.2 9.2 6.6 6.1 5.8 7.1 7.8 7.8 8.1 7.4 8.5 8.9 9.8 9.7 8.3 7.0 8.3 14.1 12.6 11.2 1. Show that X - Y is an unbiased estimator for μ₁ - ₂. 2. Find the variance of X - Y. 3. Show whether X - Y is a consistent estimator for μ-₂. Hint: Both sample sizes must become large.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:Let X₁
***
X
Y
X be a random sample from a population with mean μ, and variance of o2. Let
n
m
Y,,... Y be a random sample from a population with mean μ and variance o. We will also
assume that the Xs and Ys are independent of each other.
6.1
5.8
7.8 8.1
7.8
7.1 7.2
9.2
6.6
8.3 7.0 8.3
7.4 8.5 8.9 9.8 9.7 14.1 12.6 11.2
1. Show that X - Y is an unbiased estimator for μ₁ - ₂.
2. Find the variance of X - Y.
3. Show whether X - Y is a consistent estimator for μ₁ −μ₂. Hint: Both sample sizes must
become large.
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