SOLUTION: Faced withe rising fax costs a firm issued guideline that transmissions of 10 pages or more should be sent by 2 day mail instead. Exceptions are allowed, but they want the average
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Question 140965: Faced withe rising fax costs a firm issued 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. At a .01 level of significance, is the true mean greater than 10? Use excel to find the right tail p value.
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Stan H.
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