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

Question

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)

Determine the average cycle time for each element. (Round your answers to 3 decimal places.)

Find the normal time for each element. (Round your answers to 3 decimal places.)

Assuming an allowance factor of 14 percent of job time, compute the standard time for this job. (Round your answers to 3 decimal places.)

OBSERVATIONS (minutes per cycle)

Element Performance
Rating 1 2 3 4 5 6 1 90%        0.44 0.50 0.43 0.45 0.47 0.46 2 85           1.50 1.52 1.47 1.51 1.49 1.52 3 110           0.84 0.89 0.77 0.83 0.88 0.80 4 100           1.10 1.14 1.08 1.20 1.16 1.26

Explanation / Answer

Average Cycle Time of element = Sum of the times of six cycles / 6

Normal Time = Average Cycle Time * performance rating

Standard Time = Normal Time / (1 - Allowance facor)

Using the aboe mentioend formulas, Calculations and the solutions are given below

OBSERVATIONS (minutes per cycle) Element Performance 1 2 3 4 5 6 Average Cycle Time Normal Time Standard Time Rating 1 90% 0.44 0.5 0.43 0.45 0.47 0.46 0.460 0.410 0.480 2 85% 1.5 1.52 1.47 1.51 1.49 1.52 1.500 1.280 1.490 3 110% 0.84 0.89 0.77 0.83 0.88 0.8 0.840 0.920 1.070 4 100% 1.1 1.14 1.08 1.2 1.16 1.26 1.160 1.160 1.350

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