A test is conducted in 22 cities to see if giving away free transit system maps will increase the number of bus riders. In a regression analysis, the dependent variable Y is the increase in bus riders (in thousands of persons)from the start of the test until its conclusion. The independent variables are X1 = the number (in thousands)of free maps distributed and a binary variable X2 = 1 if the city has free downtown parking,0 otherwise. The estimated regression equation is img . In city 3,the observed Y value is 7.3 and X1 = 140 and X2 = 0.The residual for city 3 (in thousands) is:. A) 6.15.
B) 1.15.
C) 4.83.
D) 1.57.