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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Question
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.
![Observation
Time (seconds)
3
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13
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8
17
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12
N 00](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F1a088a02-6164-467b-9390-c106eff957da%2F8e98e3a0-b0cd-4165-9605-87acd7faa13b%2F9ex8ear_processed.png&w=3840&q=75)
Transcribed Image Text:Observation
Time (seconds)
3
4
13
14
8
17
18
15
15
16
12
N 00
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