The following sums have been obtained from 100 observation pairs :Ex = 12,500, Ex“ = 15, 85000, Ey = 8,000Ey = 6,48100, Exy = 10, 07, 425.Find the regression equation of y on x.cowoossps oT

Given The following sums have been obtained from 100 observation pairs : SUM of x = 12500, SUM of x²…

Answered: The following sums have been obtained…

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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Use multiple linear regression fit of the form y = a + bx₁ + cx₂ for the following data: 1.5 3 3 -1 X₁0 01 2 1 X₂ 0 1 0 1 2 1 2 3 -1 -2 -1.5 -12 -15 17 y 1644
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A regression was run to determine if there is a relationship between hours of TV watched per day (x) and number of situps a person can do (y). The results of the regression were: y=ax+b a=-1.307 b=32.392 r²=0.675684 r=-0.822 Use this to predict the number of situps a person who watches 12.5 hours of TV can do (to one decimal place)
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A regression was run to determine if there is a relationship between hours of TV watched per day (x) and number of situps a person can do (y).The results of the regression were: y=ax+b a=-1.383 b=24.599 r2=0.962361 r=-0.981 Use this to predict the number of situps a person who watches 5.5 hours of TV can do (to one decimal place)
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The following sums have been obtained from 100 observation pairs: Σ 12,500, Σ 15, 85000, Σy 8,000 %3D Ey = 6,48100, Exy = 10, 07, 425. Find the regression equation of y on x.