The standard deviation of critical dimension thickness in semiconductor manufacturing is = 20 nm. (a) State

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The standard deviation of critical dimension thickness in semiconductor manufacturing is σ = 20 nm.

(a) State the null and alternative hypotheses used to demonstrate that the standard deviation is reduced.

(b) Assume that the previous test does not reject the null hypothesis. Does this result provide strong evidence that the standard deviation has not been reduced? Explain.

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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: Jun 30, 2018 06:17 AM

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The standard deviation of critical dimension thickness in semiconductor manufacturing is = 20 nm. (a) State

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a b This result does not provide strong evidenc...View the full answer

Applied Statistics And Probability For Engineers

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