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    t-test of mean

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    The manufacturer of the Ososki motorcycle advertises that the cycle will average 87 miles per gallon of gasoline. A sample of eight bikes revealed the following mileage:

    88, 82, 81, 87, 80, 78, 79, 89

    At the .05 level, is the mean mileage less than the advertised 87 miles per gallon?

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    Solution Preview

    The manufacturer of the Ososki motorcycle advertises that the cycle will average 87 miles per gallon of gasoline. A sample of eight bikes revealed the following mileage:

    88, 82, 81, 87, 80, 78, 79, ...

    Solution Summary

    To test if the mean mileage less than the advertised 87 miles per gallon.

    $2.19

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