Suppose the quality control expert of question 30 knows from past experience that the number of defective
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Suppose the quality control expert of question 30 knows from past experience that the number of defective light bulbs in a case of 10,000 has a population standard deviation of 221. She would like to compute a 99 % confidence interval for the population mean with a precision of 50. How many light bulbs should she sample?
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Finding the Sample Size for the Confidence Interval Heres how to find the required sample size n for ...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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