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Customers at a bank wait in a single line for the next available teller. Customer arrivals can be modeled by a Poisson distribution that has a mean of 70 per hour during the midmorning hours. A teller can process an average of 100 customers per hour, which also can be modeled by a Poisson distribution. If there is one teller on duty, determine:
a. The average time a customer must wait in line for the letter.
b. The average number of customers waiting in line.
c. Average service time.
d. System utilization.
e. The probability of no customers waiting in line.
What values would be appropriate for the performance measures listed in the preceding problem for the case in which two tellers are available?
At one excavation site 8641 pot shards have been found that not yet been cleaned and identified. What is the probability that:
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Explain the difference between the null and alternative hypothesis. Which one can be proven in a statistical sense?
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A store has an average of 25 people arriving each minute to checkout and each person on the average require 4 minutes to be processed at the checkout. What is the minimum number of cashiers required?
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To investigate he selects a sample of eight weeks and determines the number of new cars sold and the number of sales people on duty for that week. a) What are the dependent and independent variables?
Computing a linear regression equation to predict the future values of the dependent variable Y - Linear relationships into a single multiple regression.
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