Select the option that best describes your data.
Complete the following steps if your data are in a column of the worksheet.
| C1 | 
|---|
| Membrane | 
| 45 | 
| 33 | 
| 26 | 
| 46 | 
| 25 | 
| 32 | 
| 33 | 
| 22 | 
In Subgroups across rows of, enter the columns that contains your data.
| C1 | C2 | 
|---|---|
| Observation 1 | Observation 2 | 
| 45 | 33 | 
| 26 | 46 | 
| 25 | 32 | 
| 33 | 22 | 
You can plot either the subgroup means or medians as points on the chart. Minitab uses the points to count the number of runs in tests for randomness.