The lengths of life (in hours) of a sample of 40 100- watt light bulbs produced by

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The lengths of life (in hours) of a sample of 40 100- watt light bulbs produced by manufacturer A and a sample of 40 100-watt light bulbs produced by manufacturer B are stored in Bulbs. Completely analyze the differences between the lengths of life of the bulbs produced by the two manufacturers. (Use α = 0.05.)
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Basic Business Statistics Concepts And Applications

ISBN: 9780132168380

12th Edition

Authors: Mark L. Berenson, David M. Levine, Timothy C. Krehbiel

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