Example #1: How Many Servers
{"Image DocumentName": "Example #1: How Many Servers?", "Image ImageDescription": "In the service department of an auto repair shop, mechanics requiring parts for auto repair present their request forms at the parts department counter. A parts clerk fills a request while the mechanics wait. Mechanics arrive at an average rate of 40 per hour (Poisson). A clerk can fill requests in 3 minutes (exponential). If the parts clerks are paid  6 per hour and the mechanics are paid  18 per hour, what is the optimal number of clerks to staff the counter. Service Cost = s   Cs. Waiting Cost = l   W   Cw. S = 4 IS THE SMALLEST.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}