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Boxes of raisins are labeled as containing 22 ounces. Following are the weights, in ounces, of a sample of 12 boxes. It is reasonable to
Boxes of raisins are labeled as containing 22 ounces. Following are the weights,
in ounces, of a sample of 12 boxes. It is reasonable to assume that the population
is approximately normal.
21.90 22.06 21.98 22.13 21.82 22.22
21.99 21.86 22.43 22.34 22.06 22.09
Construct a 90% confidence interval for the mean weight
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