A pilot work study has been conducted on a new operation with four work elements. The following times, in seconds, were obtained using the continuous method.
a. What is the normal time for this operation?
b. If an allowance of 20 percent is used, what is the standard time for this task?
c. What sample size is appropriate for estimating the time for element 3 within + 3 percent of the True mean time with 95 percent confidence (z = 1.96)?
Definitions:
Directly Overhead
A position in the sky or space where an object appears to be directly above the observer, at a 90-degree angle from the ground.
High Tide
The state of the tide when sea level reaches its maximum height within the tide cycle, covering more of the shore than at low tide.
Seaward End
The part of a geological feature, such as a river or glacier, that is closest to or extends into the sea.
Intense Erosion
The rapid wearing away of soil and rock by water, wind, or ice.
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