Variable
Symbols
-1.68179
-1
0
1
1.68179
Glucose (%)
X
1
1.31821
2
3
4
4.68179
Yeast extract (%)
X
2
0.3295
0.5
0.75
1
1.1704
Peptone (%)
X
3
0.3295
0.5
0.75
1
1.1704
Table 3:
Variables and their levels for CCD.