Question

The table shows a short excerpt from the "car weight and mileage" data file on the text CD. That file lists several 2004 model cars with automatic transmission and their x = weight (in pounds) and y = mileage (miles per gallon of gas). The scatterplot is roughly linear and r = -0.74. The regression equation is  = 47.140 - 0.0051x.

Automobile Brand	Weight	Mileage
Honda Accord Sedan LX	3137	35
Toyota Corolla	2583	40
Dodge Dakota Club Cab	3869	20
Jeep Grand Cherokee Laredo	4002	19
Hummer H2	6387	19

(a) Find the predicted mileage and residual for a Hummer H2.

y^	=  (2 decimal places)
Residual	=  (2 decimal places)

(b) Use this information in a sentence.
The Hummer gets miles/gallon  ---Select--- (fewer) (more) than one would predict.
(c)  % (Enter a number between 0 and 100; 2 decimal places) of the variability in  ---Select--- (Mileage) (Weight) can be explained by  ---Select--- (Mileage) (Weight)

Answer 1