1. An analyst is validating a method for the determination of cholesterol in milk fat. As part of the validation study, 10 portions of a certified reference material (CRM) are analysed. The mean concentration of cholesterol in the CRM is certified as 274.7 mg per 100 g, but was found to be 269.42 mg per 100 g of CRM with standard deviation of 1.75 using the proposed method. (a) Test whether there the measurement results are biased at significance level of 0.05. Given that t. = 2.262. (t = 9.54) (b) Do the results indicate that the method is providing precision significantly better than 1% RSD? Given that F. = 2.707. %3D (F = 2.36)

1. An analyst is validating a method for the determination of cholesterol in milk fat. As part of the validation study, 10 portions of a certified reference material (CRM) are analysed. The mean concentration of cholesterol in the CRM is certified as 274.7 mg per 100 g, but was found to be 269.42 mg per 100 g of CRM with standard deviation of 1.75 using the proposed method. (a) Test whether there the measurement results are biased at significance level of 0.05. Given that t. = 2.262. (t = 9.54) (b) Do the results indicate that the method is providing precision significantly better than 1% RSD? Given that F. = 2.707. %3D (F = 2.36)

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Description: 1. An analyst is validating a method for the determination of cholesterol in milkfat. As part of the validation study, 10 portions of a certified referencematerial (CRM) are analysed. The mean concentration of cholesterol in theCRM is certified as 2

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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