1. Select Help > Sample Data Library and open Big Class.jmp.
2. Select Analyze > Fit Y by X.
3. Select weight and click Y, Response.
4. Select age and click X, Factor.
5. Click OK.
6. Click the red triangle next to Oneway Analysis of weight By age and select Compare Means > Each Pair Stepwise, Newman-Keuls.
Figure 6.22 Example of Means Comparisons Report for Each Pair Stepwise, Newman-KeulsÂ
The Connecting Letters Report shows that Level 17 is significantly different from all other levels except 16 and 15.