A new machine was designed to cut a metal part at a length of .24 in.. Although
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A new machine was designed to cut a metal part at a length of .24 in.. Although the machine is well designed, for some uncontrolled reasons, the machine cuts the metal with a standard deviation of .01 in.. For quality control purposes, the company wants to draw a sample from each hour’s production and measure the average length of the sample metal parts. If the company wants to control the 99 % confidence interval in a range of .01, how many parts should the company sample every hour?
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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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