Table 1.
Randomized response surface design parameters indicating the levels of variables.
| Sl. no. | Independent variables | Coded | Low actual value | High actual value |
|---|---|---|---|---|
| 1 | Cumulative percentage coating (%) | X1 | 0 | 500 |
| 2 | Coating efficiency (%) | X2 | 35 | 95 |
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