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MCS,PHD
Argosy University/ Phoniex University/
Nov-2005 - Oct-2011
Professor
Phoniex University
Oct-2001 - Nov-2016
A process that produces bottles of shampoo, when operating correctly, produces bottles whose contents weigh, on average, 20 ounces. A random sample of nine bottles from a single production run yielded the following content weights (in ounces):
|
21.4 |
19.7 |
19.7 |
20.6 |
20.8 |
20.1 |
19.7 |
20.3 |
20.9 |
Assuming that the population distribution is normal, test at the 5% level against a two-sided alternative
the null hypothesis that the process is operating correctly.
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