1. A manufacturing company has conducted a time study for ten cycles of a job. The job has five elements and the total e

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1 A Manufacturing Company Has Conducted A Time Study For Ten Cycles Of A Job The Job Has Five Elements And The Total E 1 (37.27 KiB) Viewed 119 times

1. A manufacturing company has conducted a time study for ten cycles of a job. The job has five elements and the total elemental times (minutes) for each element and performance rating factors are as follows: Element Sumt (min) RF 1 3.61 1.05 2 4.84 0.90 3 2.93 1.00 4 4.91 1.10 5 1.78 0.95 Compute the standard time using an allowance factor of 18 percent that is added to its normal time. a) 2.15 b) 2.51 c) 3.15 d) 3.51 2. In reference to problem no. 2, determine the sample size, n, for a time study so there is 98 percent confidence that the average time computed from the time study is within 4 percent of the actual average cycle time. The sample standard deviation is 0.23. a) 40 b) 45 c) 50 d) 55