Are there any x variables that are useful for predicting the response variable Y? Please explain the reason and the statistics you use. Analysis of Variance Sum of Mean Source DF Squares Square F Value Pr > F Model 6 209.01170 104.50585 28.90 <.0001 Error 30 47.00580 3.61583 Corrected Total 36 256.01750

Parameter Estimates Parameter Standard Variable DF Estimate Error t Value Pr > |t| Intercept 1 0.74726 1.20763 0.62 0.5374 . X1 1 0.17693 0.06906 2.56 0.2118 X2 1 0.01621 0.02226 0.73 0.4679 X3 1 0.04699 0.01075 4.37 0.3101 X4 1 0.01204 0.00549 2.19 0.1304 X5 1 0.00145 0.00271 0.53 0.5945 X6 1 0.02796 0.00347 0.21 0.8343