In a random sample of 50 electrodes, the mean diameter was (0.4 mathrm{~cm}), and the standard deviation

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In a random sample of 50 electrodes, the mean diameter was $0.4 \mathrm{~cm}$, and the standard deviation was $0.005 \mathrm{~cm}$.

(a) Between what limits can it be said with $99 \%$ confidence that at least $95 \%$ of the diameters of electrodes produced will lie?

(b) Find $99 \%$ confidence limits for the true mean diameter, and explain the difference between these limits and the tolerance limits found in part (a).

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Probability And Statistics For Engineers

ISBN: 9780134435688

9th Global Edition

Authors: Richard Johnson, Irwin Miller, John Freund

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Question Posted: Apr 27, 2024 07:02 AM

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In a random sample of 50 electrodes, the mean diameter was (0.4 mathrm{~cm}), and the standard deviation

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Probability And Statistics For Engineers

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