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    Test of hypothesis

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    Faced with rising fax costs, a firm issued a guideline that transmissions of 10 pages or more should be sent by 2-day mail instead. Exceptions are allowed, but they want the average to be 10 or below. The firm examined 35 randomly chosen fax transmissions during the next year, yielding a sample mean of 14.44 with a standard deviation of 4.45 pages.
    (a) At the .01 level of significance,is the true mean greater than 10? (b) Use Excel to find the right-tail p-value.

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    https://brainmass.com/statistics/hypothesis-testing/test-of-hypothesis-162384

    Solution Preview

    Faced with rising fax costs, a firm issued a guideline that transmissions of 10 pages or more should be sent by 2-day mail instead. Exceptions are allowed, but they want the average to be 10 or below. The firm examined 35 randomly chosen fax transmissions during the next year, yielding a sample mean of 14.44 with a standard deviation of 4.45 pages.

    (a) At the .01 level of significance, is the true mean greater ...

    Solution Summary

    Tests the hypothesis that at the .01 level of significance, the true mean is greater than 10. Also finds the right-tail p-value using Excel.

    $2.19

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