2 Y; = 706 2 XiYi = 209,952 2 X² = 1,336,749 > Y² = 33,106 %3D %3D %3D i=1 i=1 i=1 i=1 A. Calculate X and Y 4478 706 ti9tI B. Calculate s C. Calculate Bo and Bi 179.12 25 28.24 222,527.L S401 104 Denoting the residuals from the estimated regression model by û,, show that the sum of the residuals equals zera 25, 2. L Σ-0 %3D i=1 Cxi-7)² Show that: Y = + û, Bo+B,X, %3D %3D is equivalent to: У; B,x, + û, where y, = Y-Y and x, Y,-Y and x, = X, - X %3D %3D %3D 4. Consider the estimated simple linear regression model Y, = B + B, X, + û, . Show that the estimated conditi %3D mean function fits through the sample means of the data. That is, show that Y = Y if X= X . %3D 5. Derive the least-squares estimators of the intercept ( B,) and slope (B) for the simple linear regression moc Show all steps for credit. 3.

2 Y; = 706 2 XiYi = 209,952 2 X² = 1,336,749 > Y² = 33,106 %3D %3D %3D i=1 i=1 i=1 i=1 A. Calculate X and Y 4478 706 ti9tI B. Calculate s C. Calculate Bo and Bi 179.12 25 28.24 222,527.L S401 104 Denoting the residuals from the estimated regression model by û,, show that the sum of the residuals equals zera 25, 2. L Σ-0 %3D i=1 Cxi-7)² Show that: Y = + û, Bo+B,X, %3D %3D is equivalent to: У; B,x, + û, where y, = Y-Y and x, Y,-Y and x, = X, - X %3D %3D %3D 4. Consider the estimated simple linear regression model Y, = B + B, X, + û, . Show that the estimated conditi %3D mean function fits through the sample means of the data. That is, show that Y = Y if X= X . %3D 5. Derive the least-squares estimators of the intercept ( B,) and slope (B) for the simple linear regression moc Show all steps for credit. 3.

Name: Hi, I need help with question 3. 2 Y; = 706 2 XiYi = 209,952 2 X² = 1,
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Description: Hi, I need help with question 3. 2 Y; = 706 2 XiYi = 209,952 2 X² = 1,336,749> Y² = 33,106%3D%3D%3Di=1i=1i=1i=1A. Calculate X and Y4478706ti9tI B. Calculate sC. Calculate Bo and Bi179.122528.24222,527.LS401 104Denoting the residuals from the estimate

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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