5. Vehicles: Mileage Based on information in Statistical Abstract of the United States (116th Edition), the average

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5. Vehicles: Mileage Based on information in Statistical Abstract of the United States (116th Edition), the average annual miles driven per vehicle in the United States is 11.1 thousand miles, with s < 600 miles. Suppose that a random sample of 36 vehicles owned by residents of Chicago showed that the average mileage driven last year was 10.8 thousand miles. Does this indicate that the average miles driven per vehicle in Chicago is different from (higher or lower than) the national average? Use a 0.05 level of significance.

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Understandable Statistics Concepts And Methods

ISBN: 9781305142909

11th Edition

Authors: Charles Henry Brase, Corrinne Pellillo Brase

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