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.
Chapter2: Basic Statistical Analysis With Excel
Section: Chapter Questions
Problem 12P
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