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Author Question: What is the required sample size to be 95% confident that the observed average time is within 2% of ... (Read 1116 times)

lb_gilbert

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Question 1

A manufacturing plant assembly line job has a standard time of 5 minutes. A worker with a performance rating of 87% is assigned the task and given an allowance factor of 13%. What is the worker's average observed time?

Question 2

What is the required sample size to be 95% confident that the observed average time is within 2% of the actual value if the process has a standard deviation of 1 minute and mean of 50 minutes?


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Marked as best answer by lb_gilbert on Dec 3, 2019

isabelt_18

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lb_gilbert

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Reply 2 on: Dec 3, 2019
:D TYSM


miss.ashley

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Reply 3 on: Yesterday
Great answer, keep it coming :)

 

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