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QUESTION 2 The amount of time a bank teller spends with each customer has a population mean of 4 minutes and a standard deviation

QUESTION 2 The amount of time a bank teller spends with each customer has a population mean of 4 minutes and a standard deviation of 1.23 minute. If a random sample of 36 customers is selected, what is the probability that the sample mean is less than 4.2 minutes? Round your answer to four decimal places.

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