QUESTION 1. A standard reference material (SRM) has been analysed for its copper content using atomic absorption spectrometry (AAS), and the results are loaded in the Excel file CMP015 Statistics Assessment Data.xlsx. Record the data from the Sheet. CU SRM AAS Data. Make sure you copy the data values (NOT the formulae) on your sheet so you have a fixed set of data to work with. Also make a note of the time and date your data were obtained. 1. Identify any potential outliers present in the data. Explain the basis of your decision and state how you intend to handle any outlier data. 2. Determine the mean, median, standard deviation and standard error of the mean for these results. 3. Assuming that there are no systematic errors occurring, determine the 95% confidence limits for the true copper concentration in the SRM. 4. Note the certificated SRM value for [Cu] / g cm-3 . Determine whether any systematic errors have in fact occurred in the measurements. 5. Determine whether the ten measurements might be a sample from a normally distributed population of data.