MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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Faced with rising fax costs, a firm issued a guideline that transmissions of 7 pages or more should be sent by 2-day mail instead. Exceptions are allowed, but they want the average to be 7 or below. The firm examined 33 randomly chosen fax transmissions during the next year, yielding a sample mean of 8.16 with a standard deviation of 3.64 pages.

a-1) Find the test statistic. (Round your answer to 4 decimal places.)

 



(a-2) At the .01 level of significance, is the true mean greater than 7?

multiple choice

  • No
  • Yes



(b) Use Excel to find the right-tail p-value. (Round your answer to 4 decimal places.)

 
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