A technique, called matrix solid-phase dispersion (MSPD), has been developed for chemically extracting trace organic (toxic) compounds

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A technique, called matrix solid-phase dispersion (MSPD), has been developed for chemically extracting trace organic (toxic) compounds from fish specimens (chromatographia, Mar. 1995). Uncontaminated fish fillets were injected with a toxic substance and the MSPD method was used to extract the toxicant. To estimate the precision of the method, seven measurements were obtained on a single fish fillet. Summary statistics on percent of the toxin recovered are given as follows: y̅ = 99%, s = 9%. Find an estimate of the recovery percentage variance when using the MSPD method. Use a 95% confidence interval.

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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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