Six different settings are tried on a machine to determine whether any of them will reduce the

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Six different settings are tried on a machine to determine whether any of them will reduce the proportion of defective parts. For each setting, an appropriate null hypothesis is tested to determine whether the proportion of defective parts has been reduced. The six P-values are 0.34, 0.27, 0.002, 0.45, 0.03, and 0.19. A quality engineer concludes at the α = 0.05 level that the method whose P-value is 0.002 reduces the proportion of defective parts. Explain why this conclusion is justified.

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Elementary Statistics

ISBN: 9781259969454

3rd Edition

Authors: William Navidi, Barry Monk

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