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In a queueing system, customers arrive once every 3 hours (standard deviation =8 ) and services take 2 hours (standard deviation = 5.6). What is

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In a queueing system, customers arrive once every 3 hours (standard deviation =8 ) and services take 2 hours (standard deviation = 5.6). What is the average time a customer will spend in the system (in hours)? Note: Do not round intermediate calculations. Round your answer to 3 decimal places

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