Work measurement procedures establish an average time of 6.24 minutes per piece on the inspection of a
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Work measurement procedures establish an average time of 6.24 minutes per piece on the inspection of a complex forging. The standard deviation of the inspection time is 0.71 minutes. Usually, 60 forgings are delivered to the inspection station on the line every eight-hour turn. One operator performs this inspection. Assuming that the castings arrive in Poisson fashion and that the service time is exponential, what would be the mean waiting time of a casting at the inspection station? What would be the average length of the casting queue?
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Related Book For
Niebels Methods, Standards and Work Design
ISBN: 978-0073376318
13th edition
Authors: Andris Freivalds, Benjamin Niebel
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