Expected time between arrivals
Cars arrive at Carla's Muffler shop for repair work at an average of 3 per hour, following an exponential distribution.
(a) What is the expected time between arrivals?
(b) What is the variance of the time between arrivals?
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The City of Mirada wants to offer cable television to its residents in 2013. The city has approached a company called CableVision to run its cable operations. After negotiating with key parties, CableVision has made the following agreements.
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Serber, Inc., which uses a volume-based cost system, produces cat condos that sell for $140 each. Direct materials cost $23 per unit, and direct labor costs $19 per unit. Manufacturing overhead is applied at a rate of 200% of direct labor cost.
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South Pole Novelties sells ice cream bars from a kiosk near campus. Fixed costs are $260 per week and the variable cost is $.50 per ice cream bar.
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