a vending machine dispenses coffee into an 8 oz cup. the amount of coffee dispensed into the cup is normally distributed with a standard deviation of 0.03 oz.you can allow the cup to overfill 5 percent of the time. what amont should you set as the mean amount of coffee to be dispensed?

Answer 1

Use z-scores and solve for the mean:

z = (8 - mean)/(0.03)

To find z to plug into the above formula, use a z-table and the percentage given in the problem.

Answer 2

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Answer 3

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