III. (20 points) 得分 Analysis of Variance Source Regression Error DF Adj SS Adj MS F-Value P-Value () 35250756 ( ) ( ) 0.

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III. (20 points) 得分 Analysis of Variance Source Regression Error DF Adj SS Adj MS F-Value P-Value () 35250756 ( ) ( ) 0.000 ( ) 7448393 ( ) Total 49 42699149

S R-sa R-sq (adj) ( ) ( ) 398. 091 Coefficients P-Value VIF Term Coef SE Coef T-Value Constant 1305 198 ( Income 33. 13 3.97 ( Size 356.3 33.2 ( ) 0.900 ) 0.030 1.03 ) 0.000 1.03 a.Develop the estimated regression equation.(2 points) b. Complete the missing entries.(8 points) c. At the 0.05 level of significance, test whether the estimated regression equation indicates a significant relationship between the independent variables and the dependent variable.(2 points) d. Based on the plot, Does the residual plot support the assumption about <?(8 points)

Versus Fits (response is Sales) 2 Standardized Residual 0 1000 2000 3000 4000 Fitted Value 5000 6000