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The computer output (below) shows a relationship where Y = Sale price for a home, X 1 = living area, and X 2 = #

The computer output (below) shows a relationship where Y = Sale price for a home, X1 = living area, and X2 = # of bedrooms, X3 = # of bathrooms. We would like to predict Price (Y). There are three 2-variable regression relationships shown and one 4-variable multiple regression relationship shown.

Regression Equation

Price

=

171032 +120420Bathrooms

Model Summary

S

R-sq

R-sq(adj)

R-sq(pred)

267458

14.27%

14.17%

13.82%

Regression Equation

Price

=

200274 +113.68LivingArea

Model Summary

S

R-sq

R-sq(adj)

R-sq(pred)

268449

13.54%

13.44%

13.10%

Regression Equation

Price

=

338975 +40234Bedrooms

Model Summary

S

R-sq

R-sq(adj)

R-sq(pred)

286741

1.35%

1.24%

0.92%

**Multiple regression output is below:

Regression Equation

Price

=

275641 +84.7LivingArea -66797Bedrooms +93925Bathrooms

Model Summary

S

R-sq

R-sq(adj)

R-sq(pred)

260320

18.97%

18.69%

18.21%

Coefficients

Term

Coef

SE Coef

T-Value

P-Value

VIF

Constant

275641

40655

6.78

0.000

Final multiple regression relationship:

Coefficients

Term Coef SE Coef T-Value P-Value

Constant 275641 40655 6.78 0.000

Living Area 84.7 13.4 6.33 0.000

Bedrooms -66797 13089 -5.10 0.000

Bathrooms 93925 13660 6.88 0.000

Model Summary

S R-sq R-sq(adj) R-sq(pred)

260320 18.97% 18.69% 18.21%

What is the independent variable that has the most influence in predicting Price? Explain your reasoning.

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