Two methods were applied to measure and test the standard reference materials of chromium.QuantityMethod 1Method 2Mean Value (ppm)Standard deviation (ppm)Number of measurements0.08260520.00001340.0820050.00012956.Are the standard deviations significantly different? Are the mean significantly different at the95% confidence level?

For testing that two std deviation are significantly different or not, we apply F test s1 = 0.000013…

Two methods were applied to measure and test the standard reference materials of chromium. Quantity Method 1 Method 2 Mean Value (ppm) Standard deviation (ppm) Number of measurements 0.082005 0.000129 0.0826052 0.0000134 5 Are the standard deviations significantly different? Are the mean significantly different at the 95% confidence level?

Two methods were applied to measure and test the standard reference materials of chromium. Quantity Method 1 Method 2 Mean Value (ppm) Standard deviation (ppm) Number of measurements 0.082005 0.000129 0.0826052 0.0000134 5 Are the standard deviations significantly different? Are the mean significantly different at the 95% confidence level?

Appl Of Ms Excel In Analytical Chemistry

2nd Edition

ISBN:9781285686691

Author:Crouch

Publisher:Crouch

Chapter2: Basic Statistical Analysis With Excel

Section: Chapter Questions

Problem 12P

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