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Miles driven (in thousands) were regressed on year for a sample of used Ford Mus

ID: 3439353 • Letter: M

Question

Miles driven (in thousands) were regressed on year for a sample of used Ford Mustangs, and interval estimates requested for cars manufactured in the year 2000.

The regression equation is
Miles = 10453 - 5.20 Year

-5.2007

____ 5. Interval estimates were requested for the mileage on a 2000 Ford Mustang. The output shows that 65 thousand miles driven is

a reasonable for an individual 2000 Ford Mustang

b reasonable for the mean mileage of all 2000 Ford Mustangs

c both (a) and (b)

d neither (a) nor (b)

Predictor Coef SE Coef T P Constant 10453 1256 8.32 0.000 Year

-5.2007

0.6261 -8.31 0.000

Explanation / Answer

b reasonable for the mean mileage of all 2000 Ford Mustangs