Reconsider the hardness measurements in Exercise 15-19. Suppose that the specifications are 45 to 60. (a) Estimate

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Reconsider the hardness measurements in Exercise 15-19. Suppose that the specifications are 45 to 60.

(a) Estimate the process standard deviation.

(b) Calculate PCR and PCR_k for the process.

Exercise 15-19

Twenty successive hardness measurements are made on a metal alloy, and the data are shown in the following table.

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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 06:35 AM

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Reconsider the hardness measurements in Exercise 15-19. Suppose that the specifications are 45 to 60. (a) Estimate

Question:

Hardness Observation 11 12 Observation Hardness 51 51 57 52 3 4 58 50 54 55 55 13 14 15 53

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Applied Statistics And Probability For Engineers

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