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Test whether the mean is greater than 10

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, other than they want the average to be 10 or below. The firm examined 35 randomly chosen fax transmissions all through 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) Employ Excel to find the right-tail p-value.

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  • Reference No.:- M921815

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