A Task Involves Positioning Two Metal Parts with a Rubber

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.
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%?

Correct Answer:

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a.Actual observed time is 286/...

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