The results of a Wagner turbidity test performed on 15 samples of standard Ottawa testing sand were

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The results of a Wagner turbidity test performed on 15 samples of standard Ottawa testing sand were (in microamperes)

26.7 25.8 24.0 24.9 26.4 25.9 24.4 21.7 24.1 25.9 27.3 26.9 27.3 24.8 23.6

a. Is it plausible that this sample was selected from a normal population distribution?

b. Calculate an upper confidence bound with confidence level 95% for the population standard deviation of turbidity

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Probability And Statistics For Engineering And The Sciences

ISBN: 9781111802325

7th Edition

Authors: Dave Ellis, Jay L Devore

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Question Posted: Sep 18, 2024 05:02 AM

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The results of a Wagner turbidity test performed on 15 samples of standard Ottawa testing sand were

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Probability And Statistics For Engineering And The Sciences

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