Below is some of the regression output from a regression of the amount various customers paid for a new car (expressed in dollars) versus the age of the customer (expressed in years), the number of previous cars the customer had purchased from the dealership in the past, a dummy variable indicating the gender of the customer (=1 for a Man and = 0 for a woman), and an interactive term the multiplies the age of the customer with the gender dummy variable. Regression Statistics             Multiple R 0.963           R Square             Adjusted R Square             Standard Error             Observations 20                         ANOVA                 df SS MS F Significance F   Regression   24686354.49 6171589 47.8 2.3289E-08   Residual     129243       Total   26625000                         Coefficients Standard Error t Stat P-value Lower 95% Upper 95% Intercept 6579.1 352.1 18.68 0.000 5828.5 7329.6 Age 68.7 37.6   0.089 -11.2   # of Prev. -847 295.3 -2.73 0.016 -1435.0 -176.2 Man -630 326.7   0.051   2.7 Age*Man 15.4 8.8 1.77 0.097 -3.2 34.4   Based on the regression output, how much more or less on average does a customer who has bought 1 previous car pay versus a customer who has not bought a previous car? (please express your answer using 1 decimal places)

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QUESTION 13

  1. Below is some of the regression output from a regression of the amount various customers paid for a new car (expressed in dollars) versus the age of the customer (expressed in years), the number of previous cars the customer had purchased from the dealership in the past, a dummy variable indicating the gender of the customer (=1 for a Man and = 0 for a woman), and an interactive term the multiplies the age of the customer with the gender dummy variable.

Regression Statistics

 

 

 

 

 

  1.  

Multiple R

0.963

 

 

 

 

 

R Square

 

 

 

 

 

 

Adjusted R Square

 

 

 

 

 

 

Standard Error

 

 

 

 

 

 

Observations

20

 

 

 

 

 

 

 

 

 

 

 

 

ANOVA

 

 

 

 

 

 

  1.  

 

df

SS

MS

F

Significance F

  1.  

Regression

 

24686354.49

6171589

47.8

2.3289E-08

 

Residual

 

 

129243

 

 

 

Total

 

26625000

 

 

 

 

 

 

 

 

 

 

 

 

Coefficients

Standard Error

t Stat

P-value

Lower 95%

Upper 95%

Intercept

6579.1

352.1

18.68

0.000

5828.5

7329.6

Age

68.7

37.6

 

0.089

-11.2

 

# of Prev.

-847

295.3

-2.73

0.016

-1435.0

-176.2

Man

-630

326.7

 

0.051

 

2.7

Age*Man

15.4

8.8

1.77

0.097

-3.2

34.4


  1.  
    Based on the regression output, how much more or less on average does a customer who has bought 1 previous car pay versus a customer who has not bought a previous car? (please express your answer using 1 decimal places)
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