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Question : An office building in New... - TutorTeddy ...
TutorTeddy - Free College Homework Help. 8 de septiembre de 2014 ยท Question : An office building in New York uses thousands of fluorescent light bulb each year. The brand of bulb it currently uses has a mean life of 900 hours. A manufacturer claims that its new brand of bulbs, which cost the same as the brand the office building currently uses
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