2. Traces of toxic, man-made hexachlorohexanes in North Sea sediments were extracted by aknown process and by two new procedures, and measured by chromatography.MethodConcentration foundConventionalProcedure A(pg/g)34.442.9Standard deviation(pg/g)3.61.2Number of replications66a.) Is the standard deviation for procedure A significantly different from that of the conventionalprocedure at 95% confidence level?b.) Is the mean concentration found by procedure A significantly different from that of theconventional procedure at 95% confidence level?

The data is given on two methods conventional and procedure A. Confidence level (C) = 95% = 0.95…

Answered: a.) Is the standard deviation for…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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a.) Is the standard deviation for procedure A significantly different from that of the conventional procedure at 95% confidence level? b.) Is the mean concentration found by procedure A significantly different from that of the conventional procedure at 95% confidence level?