Source 55 df MS Number of obs 88 F(3, 84) 57.46 Model 617130.701 3 205710.234 Prob > F 0.0000 Residual 300723.805 84 3580.0453 R-squared 0.6724 Adj R-squared 0.6607 Total 917854.506 87 10550.0518 Root MSE 59.833 price Coefficient Std. err. bdrms 13.85252 9.010145 lotsize .0020677 .0006421 sqrift . 1227782 .0132374 _Cons -21.77031 29.47504 a. Which variables are statistically significant? (10 points) b. Evaluate the model with the F statistic and the Adj R-Squared. Interpret the adjusted R- squared. (5 Points)