A time study has revealed an average observed time of 6 minutes, with a standard deviation of 1.20 minutes. These figures are based on a sample of 92 cycles. Is this sample large enough for analyst Anand Paul to be 95.0% confident that the standard time is within 5% of the true value? The required sample size is (enter your response rounded up to the nearest whole number). Is the sample large enough? No Yes

Practical Management Science
6th Edition
ISBN:9781337406659
Author:WINSTON, Wayne L.
Publisher:WINSTON, Wayne L.
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A time study has revealed an average observed time of 6 minutes, with a standard deviation of 1.20 minutes. These figures are based on a sample of 92 cycles. Is this sample large enough for analyst Anand Paul to be 95.0% confident that the standard time is within 5% of the true value?
The required sample size is
(enter your response rounded up to the nearest whole number).
Is the sample large enough?
No
Yes
Transcribed Image Text:A time study has revealed an average observed time of 6 minutes, with a standard deviation of 1.20 minutes. These figures are based on a sample of 92 cycles. Is this sample large enough for analyst Anand Paul to be 95.0% confident that the standard time is within 5% of the true value? The required sample size is (enter your response rounded up to the nearest whole number). Is the sample large enough? No Yes
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