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Question
A task involves positioning two metal parts with a rubber gasket sandwiched between them, inserting two bolts into predrilled holes, threading a nut onto each bolt, and tightening each bolt with a pneumatic wrench. In a preliminary study, the manager observed one of his workers performing this task five times. The observations were made in an air-conditioned, well-lit training facility, at ground level, with all tools and equipment clean and readily available.
| Observation: | 1 | 2 | 3 | 4 | 5 |
| Task time (seconds): | 50 | 54 | 60 | 66 | 56 |
a. What is the average observed time for this task?
b. What is the normal time for this task if the employee worked at a 10% slower pace than is typical for adequately trained workers?
c. What is standard time for this task if allowances sum to 14%?
Answer
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Weight Day
Package 1
Package 2
Package 3
Package 4 Monday
23
22
23
24 Tuesday
23
21
19
21 Wednesday
20
19
20
21 Thursday
18
19
20
19 Friday
18
20
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Answer:
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E) 1.82% of the throughput time