Mathematics, 05.05.2021 07:30 raulriquelmef6p0947w
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 29.1 g with a standard deviation of 4.5 g. At the 0.05 significance level, test the claim that the mean is less than 30 g.
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A manufacturer makes ball bearings that are supposed to have a mean weight of 30 g. A retailer suspe...
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