The pH of a solution is measured eight times by one operator using the same instrument. She

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The pH of a solution is measured eight times by one operator using the same instrument. She obtains the following data: 7.15, 7.20, 7.18, 7.19, 7.21, 7.20, 7.16, and 7.18.

(a) Calculate the sample mean.

(b) Calculate the sample variance and sample standard deviation.

(c) What are the major sources of variability in this experiment?

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Applied Statistics And Probability For Engineers

ISBN: 9780471204541

3rd Edition

Authors: Douglas C. Montgomery, George C. Runger

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Question Posted: Nov 07, 2024 07:02 AM

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The pH of a solution is measured eight times by one operator using the same instrument. She obtains the following data: 7.15, 7.20, 7.18, 7.19, 7.21, 7.20, 7.16, and 7.18. (a) Calculate the sample...
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The pH of a solution is measured eight times by one operator using the same instrument. She

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Applied Statistics And Probability For Engineers

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