10) The following results were obtained in an analysis of iron content in an oresample. The results reported as % Fe for each analysis, were as follow:Samples no.13456% Fe20.1020.5018.6519.2519.4019.99i.Calculate the mean and median from the set of the data aboveii.If the true value of %Fe is 19.65 %, calculate the value for absolute errorand percentage relative error for sample no. 3Using Q-test, justify whether an of the data must be rejected at 95 %ii.confidence leveliv.Calculate the standard deviation and relative standard deviation of thedata.

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10) The following results were obtained in an analysis of iron content in an ore sample. The results reported as % Fe for each analysis, were as follow: 1 4 Samples no. % Fe 2 5 20.10 20.50 18.65 19.25 19.40 19.99 Calculate the mean and median from the set of the data above If the true value of %Fe is 19.65 %, calculate the value for absolute error and percentage relative error for sample no. 3 ii. i. Using Q-test, justify whether an of the data must be rejected at 95 % confidence level iv. Calculate the standard deviation and relative standard deviation of the data.

10) The following results were obtained in an analysis of iron content in an ore sample. The results reported as % Fe for each analysis, were as follow: 1 4 Samples no. % Fe 2 5 20.10 20.50 18.65 19.25 19.40 19.99 Calculate the mean and median from the set of the data above If the true value of %Fe is 19.65 %, calculate the value for absolute error and percentage relative error for sample no. 3 ii. i. Using Q-test, justify whether an of the data must be rejected at 95 % confidence level iv. Calculate the standard deviation and relative standard deviation of the data.

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Question

10) The following results were obtained in an analysis of iron content in an ore
sample. The results reported as % Fe for each analysis, were as follow:
Samples no.
1
3
4
5
6
% Fe
20.10
20.50
18.65
19.25
19.40
19.99
i.
Calculate the mean and median from the set of the data above
ii.
If the true value of %Fe is 19.65 %, calculate the value for absolute error
and percentage relative error for sample no. 3
Using Q-test, justify whether an of the data must be rejected at 95 %
ii.
confidence level
iv.
Calculate the standard deviation and relative standard deviation of the
data.

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