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Delivery service to a campus dormitory

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Reference no: EM132501744

A restaurant offers pizza delivery service to a campus dormitory. Delivery times follow a normal distribution with mean 20 minutes and standard deviation 5 minutes.

a. For a single delivery, state in which of the following ranges (expressed in minutes) delivery time is most likely to lie. Briefly explain your choice without doing any calculation.

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Reference no: EM132501744

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