Miles driven in thousands were regressed on year for a sampl

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)

Solution

b reasonable for the mean mileage of all 2000 Ford Mustangs