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A brewery's filling machine is adjusted to fill bottles with a mean of 31.2 oz. of ale and a variance of 0.003. Periodically, a bottle is checked and the amount of ale noted.

(a) Assuming the amount of fill is normally distributed, what is the probability that the next randomly checked bottle contains more than 31.28 oz? (Give your answer correct to four decimal places.)

(b) Let's say you buy 94 bottles of this ale for a party. How many bottles would you expect to find containing more than 31.28 oz. of ale? (Round your answer up to the nearest whole number.)

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Statistics and Probability, Statistics

Category:- Statistics and Probability
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