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| Teaching Since: | May 2017 |
| Last Sign in: | 407 Weeks Ago, 6 Days Ago |
| Questions Answered: | 66690 |
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MCS,PHD
Argosy University/ Phoniex University/
Nov-2005 - Oct-2011
Professor
Phoniex University
Oct-2001 - Nov-2016
1.    Specifications call for the mean tensile strength µ of pa- per used in a certain packaging application to be greater than 50 psi. A new type of paper is being considered for this application. The tensile strength is measured for a sample of 110 specimens of this paper. The mean strength was 51.2 psi and the standard deviation was
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4.0 psi. Can you conclude that the mean strength is greater than 50 psi?
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