Tell us a question you need help with The Arkade Company has decided to use a 15
ID: 3430854 • Letter: T
Question
Tell us a question you need help with
The Arkade Company has decided to use a 15 percent allowance factor based on job time. Calculate the standard time for each work element and for the total job. The frequency equals 1 for all work elements.
(Round your answers to 3 decimal places, the tolerance is +/-0.002.)
Work Element
Mean Observed Time (minutes)
Perfomance Rating Factor
ST
Work Element
Mean Observed Time (minutes)
Perfomance Rating Factor
ST
1 1.20 0.95 2 1.00 0.85 3 0.80 1.10 4 0.90 1.10Explanation / Answer
Mean allowance = 15%
|z| for 98% = 2.33
pq/n = variance = 0.15(0.85)/1
Std dev = 0.357
Hence std time for each element and total job = [15-2.33(0,.357)15+2.33(0,.357)]
= (14.168,15.832)
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