If a light bulb manufacturing company wants to estimate, with 95% confidence, the mean life of light
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If a light bulb manufacturing company wants to estimate, with 95% confidence, the mean life of light emitting diode (LED) light bulbs to within ±400 hours and also assumes that the population standard deviation is 1,500 hours, how many LED light bulbs need to be selected?
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Excel Output 3 Data 4 Population Standard De...View the full answer
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Related Book For 
Basic Business Statistics Concepts And Applications
ISBN: 9780134684840
14th Edition
Authors: Mark L. Berenson, David M. Levine, Kathryn A. Szabat, David F. Stephan
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