A process that produces bottles of shampoo, when operating correctly, produces bottles whose contents weigh, on average,
Question:
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):
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.
Transcribed Image Text:
21.4 19.7 19.7 20.6 20.8 20.1 19.7 20.3 20.9
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Related Book For
Statistics For Business And Economics
ISBN: 9781292315034
9th Global Edition
Authors: Paul Newbold, William Carlson, Betty Thorne
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