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Author Question: How many observations would be necessary for a time studies analyst to be 99% confident that the ... (Read 799 times)

ereecah

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Question 1

A time study of a certain service task found an average time of 15 minutes, with a standard sample large enough that we are 95% confident that standard time is within 5% of its true value?

Question 2

How many observations would be necessary for a time studies analyst to be 99% confident that the average time is within .1 minutes of the true value if the average time is 10.5 minutes and the standard deviation is 3 minutes?


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Marked as best answer by ereecah on Dec 3, 2019

bpool94

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ereecah

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Reply 2 on: Dec 3, 2019
Wow, this really help


strudel15

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

 

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