Mathematics, 08.04.2020 00:04 JJJuliedavis
3) A manufacturer makes ball bearings that are supposed to have a mean weight of 30 g. A retailer suspects that
the mean weight is actually less than 30 g. The mean weight for a random sample of 16 ball bearings is 28.6 g
with a standard deviation of 4.4g. At the 0.05 significance level, test the claim that the sample comes from a
population with a mean weight less than 30 g.
Answers: 3
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3) A manufacturer makes ball bearings that are supposed to have a mean weight of 30 g. A retailer su...
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