Question: Study the Excel multiple regression output below. How many predictors are in this model? How many observations? What is the equation of the regression line?

Study the Excel multiple regression output below. How many predictors are in this model? How many observations? What is the equation of the regression line? Discuss the strength of the model in terms F. Which predictors, if any, are signifi cant? Why or why not? Comment on the overall eff ectiveness of the model.

Regression Statistics Multiple R 0.842 R Square 0.710 Adjusted R Square 0.630

Regression Statistics Multiple R 0.842 R Square 0.710 Adjusted R Square 0.630 Standard Error 109.430 Observations 15 ANOVA df SS MS F Significance F Regression 3 321946.82 Residual 11 131723.20 107315.6 11974.8 8.96 0.0027 Total 14 453670.00 Intercept Coefficients 657.0530 Standard Error t Stat P-value 167.460 3.92 0.0024 X Variable 1 X Variable 2 5.7103 -0.4169 1.792 3.19 0.0087 0.322 -1.29 0.2222 X Variable 3 -3.4715 1.443 -2.41 0.0349

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