Customers arrived at the cashier counter according to a

Assignment Help Basic Statistics

Reference no: EM13628305

At Lido and Frank Mini Food, customers spend an average of 25 minutes selecting their groceries. The check out time follows a normal distribution with a mean service time of 3 minutes and a standard deviation of 1 minute. Customers arrived at the cashier counter according to a Poisson distribution at the average rate of 8 customers per hour. What is the average time (in minute) a customer would spend in the store?

a. 24

b. 25.55

c. 26.11

d. 29.11

e. None of the above

Reference no: EM13628305

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