Regression Statistics Multiple R 0.6653 R. Square 0.4427 Adjusted R Square 0.2197 Standard Error 849.04 Observations 15 ANOVA df SS MS F Regression 4 5725258.63 1431314.66 1.9 Residual 10 7208701.77 720870.18 Total 14 12933960.4 Coefficients Standard Error t Stat P-value Intercept 20833.65 8744.58 2.3825 0.038 Price of snack sold on airplane -1580.76 762.57 -2.0729 0.065 average income of passenger 0.0062 0.0248 0.2493 0.808