Question: Each car in Problem 9.34 was driven by a different person. Driving habits could partially account for the differences in mileage. If someone argues a

Each car in Problem 9.34 was driven by a different person. Driving habits could partially account for the differences in mileage. If someone argues a standard deviation significantly greater than 0.5 mi/

gal indicates driver differences, would the data for the 87-octane gasoline suggest that driver habits were a factor?

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