The duration of phone calls made by employees of the Denver Book Store is a random variable having a
Question: The duration of phone calls made by employees of the Denver Book Store is a random variable having an average of 21 minutes in length with a standard deviation of 3 minutes. What can be said about the probability of a phone call made by an employee lasting between 15 and 27 minutes? You must prove your statement with statistical calculations.
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Solution Format: Word Document
Solution Format: Word Document
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