A quality control engineer at the Brite Lite Light Bulb Company wants to test for the number
Question:
A quality control engineer at the Brite Lite Light Bulb Company wants to test for the number of defective light bulbs in a case of 1,200. From past experience, he knows that the population standard deviation per box is 25 bulbs. He would like to estimate the mean number of defective bulbs with a standard deviation of 8 bulbs. How large a sample should he take?
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We can find the required sample size n using the following formula fo...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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