A manufacturer wants to estimate the average daily yield m of a chemical process and he wants

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A manufacturer wants to estimate the average daily yield m of a chemical process and he wants the margin of error to be less than 4 tons. It is known from prior studies that the standard deviation of the average daily yields is s <21. How many measurements should be included in his sample?

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Introduction To Probability And Statistics

ISBN: 9780357114469

15th Edition

Authors: William Mendenhall Iii , Robert Beaver , Barbara Beaver

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