Table H.1 A Worker Was Observed for Four Cycles in a Repetitive

question 55

Multiple Choice

Table H.1
A worker was observed for four cycles in a repetitive task that contains four distinct elements. The observer recorded the following items in seconds, using the snap-back method:

-The observer assigned a performance rating factor of 1.15 to the worker and the company employs an allowance factor of 20%. How many more observations must be made in order to develop an estimate of the select time for Element 4 that is within 5% with 95% accuracy?

• A) 1
• B) 3
• C) 5
• D) 7

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Definitions:

Bedrock

The layer of solid rock located beneath the surface soil or sediment, acting as a foundation for terrestrial landscapes.

Climate

The long-term pattern of weather in an area, typically averaged over a period of 30 years.

Dam

A structure built across a river or stream to control the flow of water.

Erosion

The process by which natural forces like water, wind, ice, and gravity wear away land surfaces, redistributing the materials.