Disks of polycarbonate plastic from a supplier are analyzed for scratch and shock resistance. The results from

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Disks of polycarbonate plastic from a supplier are analyzed for scratch and shock resistance. The results from 100 disks are summarized as follows: scratch resistance shock resistance high low high 70 9 low 16 3 Let A denote the event that a disk has high shock resistance, and let B denote the event that a disk has high scratch resis- tance. Are events A and B independent?

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Applied Statistics And Probability For Engineers

ISBN: 9780470053041

5th Edition

Authors: Douglas C. Montgomery, George C. Runger

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