A company has just installed a new automatic milling machine. The time it takes the machine to
Question:
A company has just installed a new automatic milling machine. The time it takes the machine to mill a particular part is recorded for a sample of 9 observations. The mean time is found to be X̅ = 8.50, and S2 = .0064. Find a 90 % confidence interval for the unknown mean time for milling this part.
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Step by Step Answer:
To find the confidence interval for the unknown mean time for milling the part we will use the tdist...View the full answer
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Related Book For 
Statistics For Business And Financial Economics
ISBN: 9781461458975
3rd Edition
Authors: Cheng Few Lee , John C Lee , Alice C Lee
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