A new method for the analysis of mercury was in an ore sample was tested and obtained the following data: Trial % Hg 1 12.76 2 12.57 3 12.72 4 12.79 5 12.76 Average: 12.72 St. Deviation: 0.08746 The standard method for mercury analysis was also used to test the ore. Is the mean value of the new method significantly different from the mean value of the accepted value at the 95% confidence interval? You may assume the standard deviations are the same. Accepted Method Results # of samples = 6 Average = 12.63% Hg Standard deviation = 0.053

A new method for the analysis of mercury was in an ore sample was tested and obtained the following data: Trial % Hg 1 12.76 2 12.57 3 12.72 4 12.79 5 12.76 Average: 12.72 St. Deviation: 0.08746 The standard method for mercury analysis was also used to test the ore. Is the mean value of the new method significantly different from the mean value of the accepted value at the 95% confidence interval? You may assume the standard deviations are the same. Accepted Method Results # of samples = 6 Average = 12.63% Hg Standard deviation = 0.053

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter7: Statistical Data Treatment And Evaluation

Section: Chapter Questions

Problem 7.13QAP

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