Setting upper boundaries

In the previous exercise, we attempted some abnormal classification thresholds but this isn’t the most scientific way of dealing with anomalous values.

Rather, we should set upper bounds using the mean and standard deviation to help us flag anomalous values for potential removal; this is exactly what we’ll do in this exercise.

Note we've created a field for you called 7D_WMP, which is the 7 day rolling average of the Water Market Price $ ML field that you'll need to use!

If you lost progress, load the workbook 3_5_upperbound.twbx from the Workbooks folder on the Desktop