MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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(see attachment) For part A, the E[] = 0. How do you use part A to show E[u]=0 in part B?

For ₁ discrete and 2 continuous, consider the population model
Elyi1i, 2i] = Bo + B₁x1i+ B₂x2i+B3x² + 4x1ix2i
and its corresponding error form
Yi = Bo + B1x1i + B2₂x2i + B3x2 + 4x1i · X2i + Ui
(a) What is Elu211, T21]? Why?
(b) How can you use your answer to (a) to show that E[ui] = 0?
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Transcribed Image Text:For ₁ discrete and 2 continuous, consider the population model Elyi1i, 2i] = Bo + B₁x1i+ B₂x2i+B3x² + 4x1ix2i and its corresponding error form Yi = Bo + B1x1i + B2₂x2i + B3x2 + 4x1i · X2i + Ui (a) What is Elu211, T21]? Why? (b) How can you use your answer to (a) to show that E[ui] = 0?
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