Fuel Tests. Thirty identical cars are selected for a fuel test. Half of the cars are filled
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Fuel Tests. Thirty identical cars are selected for a fuel test. Half of the cars are filled with regular gasoline, and the other half are filled with a new experimental fuel. The cars in the first group average 29.3 miles per gallon, while the cars in the second group average 35.5 miles per gallon. Discuss whether this difference seems statistically significant.
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