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What is the probability that the mean time

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Reference no: EM132856397

At a busy coffee house, the amount of time it takes a customer to receive their beverage after ordering is a normally distributed random variable μ??=4 minutes and σ??=2 minutes.

For a sample size of 18, what is the probability that the mean time it takes to receive a beverage is more than 4.5 minutes?

Reference no: EM132856397

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