Eight instances of a worker doing a task were observed as follows: How many observations would be needed to be 99.74 percent confident that the maximum error is 5 percent of the observed time? Assume that the standard deviation of the task time is two seconds.
Eight instances of a worker doing a task were observed as follows: How many observations would be needed to be 99.74 percent confident that the maximum error is 5 percent of the observed time? Assume that the standard deviation of the task time is two seconds.
Practical Management Science
6th Edition
ISBN:9781337406659
Author:WINSTON, Wayne L.
Publisher:WINSTON, Wayne L.
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Eight instances of a worker doing a task were observed as follows:
How many observations would be needed to be 99.74 percent confident that the maximum error is 5 percent of the observed time? Assume that the standard deviation of the task time is two seconds.
Transcribed Image Text:Observation
Time (seconds)
3
4
13
14
8
17
18
15
15
16
12
N 00
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