A. Which of the conditions below are necessary for valid estimates from a multiple regression model. State the conditions and explain why they are necessary. Do the same for the condition(s) that you think are NOT necessary for valid estimates. i) The values of each xik are not random and are not exact linear functions of the other explanatory variables. ii) var(e:) = o² iii) The least squares estimators are BLUE. iv) cov(yi, yi) = cov(ei, e¡) = 0; (i#j) %3D %3D
A. Which of the conditions below are necessary for valid estimates from a multiple regression model. State the conditions and explain why they are necessary. Do the same for the condition(s) that you think are NOT necessary for valid estimates. i) The values of each xik are not random and are not exact linear functions of the other explanatory variables. ii) var(e:) = o² iii) The least squares estimators are BLUE. iv) cov(yi, yi) = cov(ei, e¡) = 0; (i#j) %3D %3D
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.
Chapter1: Functions
Section1.2: The Least Square Line
Problem 5E
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