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A vending machine that dispenses coffee into cups must fill the cups with 7.8oz of liquid. Before selling the vending machine to a college or business, the company tests the machine to be sure it is dispensing an average amount of 7.8oz of coffee. A sample of 20 amounts is shown below. The amount of coffee dispensed is assumed to be normally distributed with a standard deviation of 0.05 oz.

Ounces dispensed

7.78 7.79

7.82 7.82

7.87 7.84

7.80 7.82

7.80 7.78

7.83 7.75

7.85 7.83

7.84 7.73

7.82 7.87

7.81 7.88

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Statistics and Probability, Statistics

Category:- Statistics and Probability
Reference No.:- M9394088

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