Table 2 Central composite design by statistical software minitab 17.3.0
Run order | Citric acid (mg) | Effersoda (mg) | ||
|---|---|---|---|---|
Coded value | Actual value | Coded value | Actual value | |
1 | 0.0000 | 640.00 | ā 1.41421 | 187.45 |
2 | + 1.41421 | 1092.55 | 0.0000 | 640.00 |
3 | 0.0000 | 640.00 | 0.0000 | 640.00 |
4 | 0.0000 | 640.00 | 0.0000 | 640.00 |
5 | 0.0000 | 640.00 | + 1.41421 | 1092.55 |
6 | 0.0000 | 640.00 | 0.0000 | 640.00 |
7 | ā 1.41421 | 187.45 | 0.0000 | 640.00 |
8 | 0.0000 | 640.00 | 0.0000 | 640.00 |
9 | 0.0000 | 640.00 | 0.0000 | 640.00 |
10 | + 1.0000 | 960.00 | + 1.0000 | 960.00 |
11 | ā 1.0000 | 320.00 | ā 1.0000 | 320.00 |
12 | ā 1.0000 | 320.00 | + 1.0000 | 960.00 |
13 | 0.0000 | 640.00 | 0.0000 | 640.00 |
14 | + 1.0000 | 960.00 | ā 1.0000 | 320.00 |