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Consider a balanced line consisting of five single-machine stations with exponential process times. Suppose the utilization is 75 percent and the line runs under the CONWlP protocol (i.e., a new job is started each time a job is completed). a. What is the WlP level in the line? b. What is the cycle time as a percentage of To? c. What happens to WIP, CT, and TH relative to the original system if you make each of the following changes (one at a time)? i. Increase the WIP level ii. Decrease the variability of one station iii. Decrease the capacity at one station iv. Increase the capacity of all stations

Consider a balanced line consisting of five single-machine stations with exponential process times. Suppose the utilization is 75 percent and the line runs under the CONWlP protocol (i.e., a new job is started each time a job is completed). a. What is the WlP level in the line? b. What is the cycle time as a percentage of To? c. What happens to WIP, CT, and TH relative to the original system if you make each of the following changes (one at a time)? i. Increase the WIP level ii. Decrease the variability of one station iii. Decrease the capacity at one station iv. Increase the capacity of all stations

Practical Management Science
Practical Management Science
6th Edition
ISBN:9781337406659
Author:WINSTON, Wayne L.
Publisher:WINSTON, Wayne L.
Chapter2: Introduction To Spreadsheet Modeling
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Consider a balanced line consisting of five single-machine stations with exponential process times. Suppose the utilization is 75 percent and the line runs under the CONWlP protocol (i.e., a new job is started each time a job is completed).

a. What is the WlP level in the line?

b. What is the cycle time as a percentage of To?

c. What happens to WIP, CT, and TH relative to the original system if you make each of the following changes (one at a time)?

i. Increase the WIP level

ii. Decrease the variability of one station

iii. Decrease the capacity at one station

iv. Increase the capacity of all stations

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