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A machine operator processes two types of jobs A and B during the course of the day Analyses of past data show that 40% of all jobs are type

A machine operator processes two types of jobs, A and B, during the course of the day. Analyses of past data show that 40% of all jobs are type A jobs, and 60% are type B jobs. Type A jobs have completion times that can be represented by an Erlang distribution with rate parameter 5 and shape parameter 2. Completion times of type B jobs can be represented by the following triangular distribution:

 

 

 

x-1 1x4

12

f(x) = 9-x 4x9

20

 

If jobs arrive at an exponential rate of 10 per hour, develop a simulation model to calculate the percentage of idle time of the operator and the average number of jobs in the line waiting to be processed.

Aug 10 2020 View more View Less

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