When you are working with subgrouped data, it can be helpful to accompany a cusum chart for means with a Shewhart s chart for monitoring the variability of the process. This example creates this ...

Managing projects can sometimes feel like herding cats: tasks scatter, deadlines blur, and team members lose focus. Without a solid project management tool for tracking tacks and a project management ...

Many options in PROC CHART are valid in more than one statement. This section describes the options that you can use on the chart-producing statements. Compute the cumulative frequency for each bar ...