Suppose a phone company reports that the average duration of a cell phone call is 1.7 minutes with a standard deviation of 1.4 minutes.
-Use the CLT to approximate the probability that in a random sample of 60 calls, the sample average duration would be less than 2 minutes.

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The Answer of Suppose a phone company reports that the average duration of a cell phone call is 1.7 minutes with a standard deviation of 1.4 minutes.
-Use the CLT to approximate the probability that in a random sample of 60 calls, the sample average duration would be less than 2 minutes.

Suppose a Phone Company Reports That the Average Duration of a Cell