The lengths of life (in hours) of a sample of 40 6-watt light emitting diode (LED) light

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The lengths of life (in hours) of a sample of 40 6-watt light emitting diode (LED) light bulbs produced by Manufacturer A and a sample of 40 6-watt LED light bulbs produced by Manufacturer B are stored in Bulbs.

a. Using a 0.05 level of significance, is there evidence of a difference in the median life of bulbs produced by the two manufacturers?

b. What assumptions must you make in (a)?

c. Compare the results of (a) with those of Problem 10.64 on page 384. Discuss.

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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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Question Posted: Jun 17, 2019 09:19 AM

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The lengths of life (in hours) of a sample of 40 6-watt light emitting diode (LED) light

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Basic Business Statistics Concepts And Applications

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