Question: 3. Suppose that a machine set for filling 1-lb boxes of sugar yields a population of fillings, whose weights are (approximately) normally distributed with a

3. Suppose that a machine set for filling 1-lb boxes of sugar yields a population of fillings, whose weights are (approximately) normally distributed with a mean of 16.30 oz and a standard deviation of 0.15 oz. Estimate:

(a) The percentage of fillings that will be underweight (i.e., less than 1 lb)

(b) The percentage of fillings within 16.3 ± 0.2 oz

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