Ford taurus travels 21 mi. while consuming exactly 1 gallon, Ask an Expert

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Problem: Ford Taurus travels 21 mi. while consuming exactly 1 gallon of gas. You developed a modification to the engine you believe increases the distance. If you want to justify your claim of increased mileage by using a hypothesis test, is it possible to state your claim so that it becomes the null hypothesis? Why, why not?

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