| Estimators | Relative efficiency of suggested estimator with respect to mean per unit estimator for two phase sampling | |
| Population I | Population II | |
|
| 100 | 100 |
|
| 135 | 140 |
|
| 127 | 130 |
|
| 199 | 183 |
|
| 183 | 175 |
|
| 211 | 274 |
