Quality control engineers at DuPont utilize nested sampling schemes to determine the percentage of a product shipped

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Quality control engineers at DuPont utilize nested sampling schemes to determine the percentage of a product shipped that conforms to specifications.* First, a random sample of n1 production lots is selected; then, a random sample of n2 batches is selected from each production lot. Finally, n3 shipping lots are randomly selected from each batch for inspection. Suppose n1 = 10, n2 = 5, and n3 = 20. Give the sources and degrees of freedom for an analysis of variance for the nested sampling design.

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Statistics For Engineering And The Sciences

ISBN: 9781498728850

6th Edition

Authors: William M. Mendenhall, Terry L. Sincich

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