Below is some of the regression output from a simple regression of the gas mileage (expressed in miles per gallon) (MPG) an automobile gets and the size of the car's engine (expressed in cubic liters)   SUMMARY OUTPUT (engine size and MPG)                     Regression Statistics             Multiple R             R Square             Adjusted R Square             Standard Error             Observations 9                         ANOVA               df SS MS F Significance F   Regression   76.9 76.9 26.96 0.001263155   Residual   20.0 2.9       Total                             Coefficients Standard Error t Stat P-value Lower 95% Upper 95% Intercept 37.7 2.493 15.13 1.324E-06 31.83 43.62 Engine Size -4.73 0.911   0.001       Based on the regression output, what is R 2 (or coefficient of determination)? (please express your answer using 2 decimal places)

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QUESTION 1

Below is some of the regression output from a simple regression of the gas mileage (expressed in miles per gallon) (MPG) an automobile gets and the size of the car's engine (expressed in cubic liters)

 
SUMMARY OUTPUT
(engine size and MPG)
 
 
 
 
 
 
 
 
 
 
Regression Statistics
 
 
 
 
 
 
Multiple R
 
 
 
 
 
 
R Square
 
 
 
 
 
 
Adjusted R Square
 
 
 
 
 
 
Standard Error
 
 
 
 
 
 
Observations
9
 
 
 
 
 
 
 
 
 
 
 
 
ANOVA
 
 
 
 
 
 
 
df
SS
MS
F
Significance F
 
Regression
 
76.9
76.9
26.96
0.001263155
 
Residual
 
20.0
2.9
 
 
 
Total
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Coefficients
Standard Error
t Stat
P-value
Lower 95%
Upper 95%
Intercept
37.7
2.493
15.13
1.324E-06
31.83
43.62
Engine Size
-4.73
0.911
 
0.001
 
 

 
Based on the regression output, what is R 2 (or coefficient of determination)? (please express your answer using 2 decimal places)
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