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The Judy Gray Income Tax Service is analyzing its customer service operations during the month prior to the April filing deadline. On the basis of past data it has been estimated that customers arrive according to a Poisson process with an average interarrival time of 12 minutes. The time to complete a return for a customer is exponentially distributed with a mean of 10 minutes. Based on this information, answer the following questions:Required:(a)If you went to Judy, how much time would you allow for getting your return done?(b)On an average, how many people are expected in the waiting area? (Round your answer to 2 decimal places.)(c)If Judy stayed in the office 12 hours per day, how many hours on average, per day, would she be busy? (Round your answer to the nearest whole number.)(d)What is the probability that the system is idle? Probability(e)If the arrival rate remained unchanged but the average time in system must be 45 minutes or less, what should be the minimum service rate per hour? (Round your answer to 2 decimal places.)
A process is so vital to an organization that the main unit has 2 backups. In case the main unit fails, either backup can be pressed into service. The main unit has a reliability of .95.
A mass of 10kg travelling at 5 m/s undergoes a head on elastic collision with a 7kg object travelling at 9 m/s in the opposite direction.
Based on se needs, explain how would you structure various types of communications-memos, voice mail message, also so forth-for a virtual worke.
Since the deregulation of the airline industry, fierce competition has forced Global Airlines to reexamine their operations for efficiency and economy.
Illustrates what is effect of dichromate solution used in passivasion of hot deep steel pipes galvanizing process.
Analze the primary causes of information management/ information technology project failures and recommend at least three best practices that could be adopted
What are the culturally contingent leadership behaviors and attributes? What are the positive leadership behaviors and traits that are universally accepted that facilitate leadership effectiveness?
Illustrate the linear programming model with its decision variables and its constraints. Use the computer solution generated by Excel (Solve) to see which team works with which project. Provide the Excel file.
Develop a cultural relativist approach and take sides in the events depicted in the case, accordingly. What can you say about the mandatory use of headscarves in Iran?
A cafeteria wants to introduce a new burger, with bread and beef together weighing at least 1 ounce. The cafeteria manage also wants the new burger to meet a new nutrition standard.
Calculate the single exponential smoothing forecast for these data using an ? of 0.30 and an initial forecast ( F 1 ) of 36.
A short discussion on the elements considered necessary for research to be considered good research.
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