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Author Question: How many observations would be necessary for a time studies analyst to be 99% confident that the ... (Read 800 times)

ereecah

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on: Dec 3, 2019

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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Reply #1 on: Dec 3, 2019
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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ereecah

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

nguyenhoanhat

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

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