Consider the following data. Do heavier cars really use more gasoline? Suppose a car is chosen at random. Let X be the weight of the car (in hundreds of pounds), and let y be the miles per gallon (mpg). The following information is based on data taken from Consumer Reports (Vol. 62, No. 4). x 28 44 32 47 23 40 34 52 y 33 20 26 13 29 17 21 14 la USE SALT Given the least squares line g7 = 46.0921 0.6525x: (a) Make a residual plot for the leastsquares model. Be sure to plot the horizontal line aty = 0. Y Y 10 10 5 . 5 ' o . . o o o . o o ' ' o o ' x 0 20 30 40 50 60 O 20 30 4O 50 Y Y 10 10 5 . 5 . o . . o o o ' ' o o o o ' . . ..... X 20 30 40 so so 0 20 30 40 so (b) Use the residual plot to comment about the appropriateness of the least squares model for these data. 0 The residuals do not seem to be scattered randomly around the horizontal line at 0. There do not appear to be any outliers. O The residuals do not seem to be scattered randomly around the horizontal line at 0. There do appear to be outliers. O The residuals seem to be scattered randomly around the horizontal line at 0. There do appear to be outliers. O The residuals seem to be scattered randomly around the horizontal line at 0. There do not appear to be any outliers. Need Help