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Independent variables and their levels in coded and physical units
| Independent variables | Levels
|
||||
|---|---|---|---|---|---|
| −1.732 | −1 | 0 | +1 | +1.732 | |
| Cholesterol:soybean lecithin (X1) | 0.25 | 0.36 | 0.5 | 0.64 | 0.75 |
| Total lipids:drug (X2) | 10.00 | 11.27 | 13.00 | 14.73 | 16.00 |
| Triolein:soybean lecithin (X3) | 0.13 | 0.25 | 0.41 | 0.57 | 0.69 |
