Suppose that a quality characteristic is normally distributed with specifications at 150 20. Natural tolerance limits

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Suppose that a quality characteristic is normally distributed with specifications at 150 ± 20. Natural tolerance limits for the process are 150 ± 18.

(a) Calculate the process standard deviation.

(b) Calculate PCR and PCR_k of the process. Calculate the percentage of the specification width used by the process.

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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 07, 2018 01:43 PM

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Suppose that a quality characteristic is normally distributed with specifications at 150 20. Natural tolerance limits

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a The natural tolerance limits are 150 3s 150 18 The standard deviation 6 b PCR 40 6 6 111 ...View the full answer

Applied Statistics And Probability For Engineers

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