Question: For exercises 1-8, use the data in the table, which shows the personal incoMeand outlays (both in trillions of dollars) for Americans for 11 recent years.

The equation used to predict sunflower yield (in pounds) is

where \({{x}_{1}}\) is the number of acres planted (in thousands) and \({{x}_{2}}\) is the number of acres harvested (in thousands). Use the regression equation to predict the y-values for the given values of the independent variable listed below. Then determine which variable has a greater influence on the value of \(y\)

(a) \({{x}_{1}}=2103,\text{ }{{x}_{2}}=2037\) (b) \({{x}_{1}}=3387,\text{ }{{x}_{2}}=3009\)

(c) \({{x}_{1}}=2185,\text{ }{{x}_{2}}=1980\) (d) \({{x}_{1}}=3485,\text{ }{{x}_{2}}=3404\)