The Universal Manufacturing Company produces a particular product in an assembly-line operation. One of themachines on the line is a drill press that has a single assembly line feeding into it. A partially completed unit arrives at the press to be worked on every 8 minutes, onaverage, according to an exponential distribution. Themachine operator can process an average of 10 parts perhour (Poisson distributed). Determine the average numberof parts waiting to be worked on, the percentage of timethe operator is working, and the percentage of time themachine is idle.
The Universal Manufacturing Company produces a particular product in an assembly-line operation. One of themachines on the line is a drill press that has a single assembly line feeding into it. A partially completed unit arrives at the press to be worked on every 8 minutes, onaverage, according to an exponential distribution. Themachine operator can process an average of 10 parts perhour (Poisson distributed). Determine the average numberof parts waiting to be worked on, the percentage of timethe operator is working, and the percentage of time themachine is idle.
Practical Management Science
6th Edition
ISBN:9781337406659
Author:WINSTON, Wayne L.
Publisher:WINSTON, Wayne L.
Chapter12: Queueing Models
Section12.5: Analytic Steady-state Queueing Models
Problem 18P
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The Universal Manufacturing Company produces a particular product in an assembly-line operation. One of the
machines on the line is a drill press that has a single assembly line feeding into it. A partially completed unit arrives at the press to be worked on every 8 minutes, on
average, according to an exponential distribution. The
machine operator can process an average of 10 parts per
hour (Poisson distributed). Determine the average number
of parts waiting to be worked on, the percentage of time
the operator is working, and the percentage of time the
machine is idle.
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