Probability-mean time spent per customer is three minutes

Reference no: EM13135753

The amount of time a bank teller spends with each customer has a population mean, u, of 3.10 minutes and standard deviation , O, of .40 minute. If you select a random sample of 16 customers:

a) what is the probability that the mean time spent per customer is at least 3 minutes?

Reference no: EM13135753

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