Suppose that a quality characteristic is normally distributed with specifications from 10 to 30 units. The process

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Suppose that a quality characteristic is normally distributed with specifications from 10 to 30 units. The process standard deviation is 2 units.

(a) Calculate the natural tolerance limits, fraction defective, PCR, and PCR_k when the process mean is 20.

(b) Suppose that the process mean shifts higher by 1.5 standard deviations. Recalculate the quantities in part (b).

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Applied Statistics And Probability For Engineers

ISBN: 9781118539712

6th Edition

Authors: Douglas C. Montgomery, George C. Runger

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Question Posted: Jul 02, 2018 05:46 AM

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Suppose that a quality characteristic is normally distributed with specifications from 10 to 30 units. The process

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a The natural tolerance limits are 20 6 Because the mean o...View the full answer

Applied Statistics And Probability For Engineers

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