step | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 |
RSS | 30.98 | 30.94 | 30.93 | 30.80 | 30.78 | 30.78 | 30.77 | 30.77 |
Cp value | 19.96 | 18.61 | 20.12 | 9.56 | 10.23 | 11.67 | 13.01 | 15.03 |