Quality and Reliability Methods - SAS

Chapter 4 Interactive Control Charts 67
Additional Example of Control Chart Builder
Right-Click Axis Options
Swap
swaps the position of two variables. Select the variable that you want to switch with.
Remove removes a variable.
For details about the Axis Settings, Revert Axis, Add or Remove Axis, and Edit options, see Using JMP.
Additional Example of Control Chart Builder
A manufacturer of medical tubing collected tube diameter data for a new prototype. The data was collected
over the past 40 days of production. After the first 20 days (phase 1), some adjustments were made to the
manufacturing equipment. Analyze the data to determine whether the past 20 days (phase 2) of production
are in a state of control.
1. Open the Diameter.jmp sample data table.
2. Select Analyze > Quality and Process > Control Chart Builder.
3. Assign DIAMETER to the Y role.
4. Assign DAY to the Subgroup role.
Figure 4.5 Control Charts for Diameter
The phase 1 observations (the first 20 days) have higher variability, and in the Average chart, there are three
observations that are outside of the control limits.