1. A job has been time-studied for 30 observations. The mean actual time was 3.66 minutes, and...
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1. A job has been time-studied for 30 observations. The mean actual time was 3.66 minutes, and the coefficient of variation (CV) was found to be 20 percent (CV = 0.20).
How many total observations should be taken for 95 percent confidence that the mean actual time has been determined within 5 percent?
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Operations Management Providing Value In Goods And Services
ISBN: 9780030262074
3rd Edition
Authors: Dilworth, James B
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