On a chart, I want to draw a line for calls taken by month for 1 consultant and then draw a range for the average for the team - 30 to the average for the team + 30. The business would like to see that each consultant stays within that range.
I was thinking that I might do it as a range chart and do the first series with the consultants call as both low and high range which may might a single line. Does that work or is there an official way of doing what I want to do?
Nick Ryan MIS Programmer Analyst, ANZ Bank