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five cars each with its own peculiarities are being...

Question: five cars each with its own peculiarities are being...

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. Five cars (each with its own peculiarities) are being used to evaluate the effect of gasoline Problem d addiive to improve performance) on the mileage. The run per gallon of fuel with and without the detergent are the following: Fith Without 18.1 17.2 10.0 9.4 7.8 8.3 22.4 20.1 25.8 27.0 (a) is the detergent effective? (Does mileage increase when detergent is being used?) (b) What assumption did you make in (a)?

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