Below is the output of a multiple model predicting car mileage per gallon (mpg) as a function of horsepower (hp) and weight (wt): How many observations were in the model? For the above model, calculate the adjusted R2 value (3 sig digits) For the above model, what is the value of the F-statistic corresponding to the omnibus test for the fit of the entire model? (3 sig digits)

College Algebra
1st Edition
ISBN:9781938168383
Author:Jay Abramson
Publisher:Jay Abramson
Chapter3: Functions
Section3.6: Absolute Value Functions
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Below is the output of a multiple model predicting car mileage per gallon (mpg) as a function of horsepower (hp) and weight (wt):

How many observations were in the model?

For the above model, calculate the adjusted R2 value (3 sig digits)

For the above model, what is the value of the F-statistic corresponding to the omnibus test for the fit of the entire model? (3 sig digits)

Call:
lm(formula
Residuals:
Min
= mpg hp + wt, data
1Q Median
3Q
Max
-3.941 -1.600 -0.182 1.050 5.854
Coefficients:
(Intercept)
=
hp
wt
mtcars)
Estimate Std. Error t value Pr(>ltl)
37.22727
-0.03177
-3.87783
1.59879 23.285
< 2e-16 ***
0.00903 -3.519 0.00145 **
0.63273 -6.129 1.12e-06 ***
Signif. codes: 0 '***' 0.001 '**' 0.01 '*' 0.05 0.
Residual standard error: 2.593 on 29 degrees of freedom
Multiple R-squared: 0.8268, Adjusted R-squared: 0.
Transcribed Image Text:Call: lm(formula Residuals: Min = mpg hp + wt, data 1Q Median 3Q Max -3.941 -1.600 -0.182 1.050 5.854 Coefficients: (Intercept) = hp wt mtcars) Estimate Std. Error t value Pr(>ltl) 37.22727 -0.03177 -3.87783 1.59879 23.285 < 2e-16 *** 0.00903 -3.519 0.00145 ** 0.63273 -6.129 1.12e-06 *** Signif. codes: 0 '***' 0.001 '**' 0.01 '*' 0.05 0. Residual standard error: 2.593 on 29 degrees of freedom Multiple R-squared: 0.8268, Adjusted R-squared: 0.
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