What is the probability that the average service time

Assignment Help Basic Statistics

Reference no: EM133411505

Question: The mean and standard deviation of service times for customers at a post office are

known to be 2.93 minutes and 1.79 minutes, respectively.

(a) What is the probability that the average service time for the next two customers is less than 2.7 minutes?

(c) What is the approximate probability that the total service time for the next 65 customers exceeds three hours? (Assume that the next 65 customers represent a simple random sample and that there is always a customer waiting in line.)

Reference no: EM133411505

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