(Solved)1. At the Smalltown post office patrons wait in a single li
1. At the Smalltown post office patrons wait in a single line for the first open window. An average of 150 patrons per hour enter the post office, and each window can serve an average of 60 patrons per hour. The post office estimates a cost of $1 for each minute a patron waits in line and believes that it costs $30 per hour to keep a window open. Interarrival times and service times are exponential. (a) State the applicable queueing model. (b) In order to minimize the total expected hourly cost, how many windows should be open?
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