For a simple random sample of 35 Honda accords (4 cylinder, 2.4 liter, 5-speed automatic), the mean

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Question:

For a simple random sample of 35 Honda accords (4 cylinder, 2.4 liter, 5-speed automatic), the mean gas mileage was 33 miles with a sample standard deviation of 2.5 miles. Construct a 98% confidence interval for the mean gas mileage of similar 2005 Honda Accords. Interpret the result.