10.1 (a)A simulation model of a job shop was developed to investigate different scheduling rules. TO validate the model, the scheduling rule currently used was incorporated into the model and the resulting output was compared against observed system behavior. By searching the previous year's database records, it was estimated that the average number of jobs in the shop was 22.5 on a given day. Seven independent replications of the model were run, each of the 30 days' duration, with the following results for average number of jobs in the shop:
18.9 22.0 19.4 22.1 19.8 21.9 20.2
a) Develop and conduct a statistical test to evaluate whether model output is consistent with system behavior. Use the level of significance =0.05
System data for the job shop of Exercise 1 revealed that the average time spent by a job in the shop was approximately 4 working days. The model made the following predictions, on seven independent replications, for average time spent in the shop:
3.70 4.21 4.35 4.13 3.83 4.32 4.05
a) Is model output consistent with system behavior? Conduct a statistical test, using the level of significance =0.11
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