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A Machine for filling cereal into boxes (1.5 kg/box) is installed in a production line. A random sample of 11 cereals boxes and weighted for
A Machine for filling cereal into boxes (1.5 kg/box) is installed in a production line. A random sample of 11 cereals boxes and weighted for quality control checking. The results (in kg) are as follows: 1.51, 1.55, 1.53, 1.57, 1.55, 1.50, 1.54, 1.50, 1.55, 1.57, 1.54 Assumed that the weights are normally distributed; calculate a 95% confidence interval for the mean weight of all boxes of cereal.
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