The estimated regression equation for a model involving 30 observations follows. ŷ = 17.6 + 3.8x1– 2.3x2 + 7.6x3 + 2.7x4 The values of SST and SSR are 1805 and 1760, respectively. a. Compute R². b. Compute Ra. c. Comment on the goodness of fit.
The estimated regression equation for a model involving 30 observations follows. ŷ = 17.6 + 3.8x1– 2.3x2 + 7.6x3 + 2.7x4 The values of SST and SSR are 1805 and 1760, respectively. a. Compute R². b. Compute Ra. c. Comment on the goodness of fit.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter4: Equations Of Linear Functions
Section4.6: Regression And Median-fit Lines
Problem 5PPS
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only need C but would love an explanation on goodness of fit thoroughly
![The estimated regression equation for a model involving 30 observations follows.
ŷ = 17.6 + 3.8x1– 2.3x2 + 7.6x3 + 2.7x4
The values of SST and SSR are 1805 and 1760, respectively.
a. Compute R2.
b. Compute Ra.
c. Comment on the goodness of fit.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F30f3bb7e-17e6-4578-bbed-589f9c85949a%2F9f98f2ec-e15d-450d-b571-052fb8e5a9fc%2Ffuaum6y_processed.png&w=3840&q=75)
Transcribed Image Text:The estimated regression equation for a model involving 30 observations follows.
ŷ = 17.6 + 3.8x1– 2.3x2 + 7.6x3 + 2.7x4
The values of SST and SSR are 1805 and 1760, respectively.
a. Compute R2.
b. Compute Ra.
c. Comment on the goodness of fit.
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