Answer to Question #330221 in Economics for Abdul

Question

The amount of time a bank teller spends with each customer has a population mean,

3.10 minutes and a standard deviation, = 0.40 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?

b) there is an 85% chance that the sample mean is less than how many minutes?

Answer 1

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