Excel stops copying the formula when it reaches the last cell with adjacent data. Enter "=Average (C:C)-2.66*Average (A:A)" in cell D2 and copy the formula down the column to create the lower limit.

How to Interpret the Mean & Standard Deviation on a Control Chart. The extent to which products meet specifications needs to be systematically monitored in a production process. Product quality ...

To create a Histogram Chart in Excel, you first need to have a dataset ready. Once your data is prepared, you can use the built-in Histogram tool to generate the chart.