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March 24, 2017

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A vending machine dispenses coffee into a twelve-ounce cup. The amount of coffee dispensed into the cup is normally distributed with a standard deviation of 0.05 ounce. You can allow the cup to overfill 4% of the time. What amount should you set as the mean amount of coffee to be dispensed

  • statistics - ,

    Find one-tail z-score from tables
    Z(0.96)=(12-μ)/0.05
    Solve for μ

  • statistics - ,

    11.92

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