Check for normality of the data and do a control chart to test process stability. These are common underlying assumptions for ...

Do an MSA (measurement system analysis) before collecting your data. This is so you can have confidence the data properly represents the process. Don’t Control Chart Everything That Moves ...

Here is the process of making a Pareto chart. The final step is analysis. You can analyze a Pareto chart by identifying those items that appear to account for most of the difficulty. In the ...