Suppose you are to fit a linear model which is forced to have an intercept equal to 5, of the form given by: Y₁ = 5 + B₁X₁ + &; for i = 1,2,.., n where & has mean 0 and variance o² for any value of X. a) Derive the least squares estimator, ₁ of the slope ₁. b) Find E(₁) and o² (B₁). c) Derive the maximum likelihood estimator, ₁ of the slope ₁. Is it the same as the least squares estimator? d) What is the estimator of the variance of the random error term? e) Prove whether or not it is still true that 1 ej = 0. i=1
Suppose you are to fit a linear model which is forced to have an intercept equal to 5, of the form given by: Y₁ = 5 + B₁X₁ + &; for i = 1,2,.., n where & has mean 0 and variance o² for any value of X. a) Derive the least squares estimator, ₁ of the slope ₁. b) Find E(₁) and o² (B₁). c) Derive the maximum likelihood estimator, ₁ of the slope ₁. Is it the same as the least squares estimator? d) What is the estimator of the variance of the random error term? e) Prove whether or not it is still true that 1 ej = 0. i=1
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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