Reconsider the hardness measurements in Exercise 15-19. Suppose that the specifications are 45 to 60. (a) Estimate
Question:
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 PCRk 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.
Transcribed Image Text:
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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Related Book For
Applied Statistics And Probability For Engineers
ISBN: 9781118539712
6th Edition
Authors: Douglas C. Montgomery, George C. Runger
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