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A time study was conducted on a job that contains four elements. The observed times and

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A time study was conducted on a job that contains four elements. The observed times and performance ratings for six cycles are shown in the following table. OBSERVATIONS (minutes per cycle) ElementPerformance Rating 190% 0.44 0.50 0.43 0.45 0.43 0.46 285 1.50 1.56 ...

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  • June 14, 2020
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  • 2019/2020
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1. Determine the average circle time for each element

element Average cycle(Sum of the times recorded to
perform each element/Number of 0bservation)
1 0.452
2 1.508
3 0.833
4 1.150


2. Normal time for each element

Element Normal time(Average 0bserved
time*Performance rating factor)
1 (0.452)(0.9)=0.407
2 (1.508)(0.85)=1.282
3 (0.833)(1.1)=0.916
4 (1.150)(1.0)=1.150


c. Assuming an allowance factor of 13% of job time, compute the standard time of this job


Element Standard time=(Normal time)/(1-Allowance
factor)
1 (0.407)/(1-0.13)=0.468
2 (1.282)/(1-0.13)=1.474
3 (0.916)/(1-0.13)=1.053
4 (1.150)/(1-0.13)=1.322

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