A least-squares multiple linear regression model was fit on 54 observations. The resulting regression equation is given by y = 96 + 48 x1 + 41 x2 - 72 x3 Calculate the F-statistic for the regression by filling in the ANOVA table. SS df MS F-statistic Regression Residual 116 Total 168 O 0.1338 O 7.4713 O 0.2677 O 0.1239 O 14.9425