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d) The following data was obtained from the determination of lead, Pb in a wastewater sample. Four measurements were made. The set of data obtained was as follow: Measurement 1 2 3 4 14.1 15.2 14.9 15.4 Pb concentration (ppm) i) Using Q-test, justify whether the outlier should be rejected or accepted at 90% confidence level. ii) Calculate the mean and standard deviation of the data set after the Q-test has been done. iii) Determine the 90% confidence limit for the true concentration of Pb in the sample.

d) The following data was obtained from the determination of lead, Pb in a wastewater sample. Four measurements were made. The set of data obtained was as follow: Measurement 1 2 3 4 14.1 15.2 14.9 15.4 Pb concentration (ppm) i) Using Q-test, justify whether the outlier should be rejected or accepted at 90% confidence level. ii) Calculate the mean and standard deviation of the data set after the Q-test has been done. iii) Determine the 90% confidence limit for the true concentration of Pb in the sample.

MATLAB: An Introduction with Applications
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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d) The following data was obtained from the determination of lead, Pb in a wastewater sample. Four measurements were made. The set of data obtained was as follow: Measurement 1 2 3 4 14.1 15.2 14.9 15.4 Pb concentration (ppm) i) Using Q-test, justify whether the outlier should be rejected or accepted at 90% confidence level. ii) Calculate the mean and standard deviation of the data set after the Q-test has been done. iii) Determine the 90% confidence limit for the true concentration of Pb in the sample.
Transcribed Image Text:d) The following data was obtained from the determination of lead, Pb in a wastewater sample. Four measurements were made. The set of data obtained was as follow: Measurement 1 2 3 4 14.1 15.2 14.9 15.4 Pb concentration (ppm) i) Using Q-test, justify whether the outlier should be rejected or accepted at 90% confidence level. ii) Calculate the mean and standard deviation of the data set after the Q-test has been done. iii) Determine the 90% confidence limit for the true concentration of Pb in the sample.
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