Table 3. Central composite design and response variables for milk beverage supplemented with coffee

Run number	Coded variable1)		Process variable		Response variables2)
	X1	X2	X1	X2	Y1	Y2
1	−1	0	5,000	0.2	217.867	36.1000
2	0	0	10,000	0.2	260.500	35.6000
3	0	0	10,000	0.2	186.433	30.8300
4	+1	+1	15,000	0.3	219.767	32.5666
5	0	0	10,000	0.2	181.933	29.0667
6	−1	+1	5,000	0.3	178.267	29.9667
7	−1	−1	5,000	0.1	179.900	27.5000
8	0	0	10,000	0.2	175.633	29.6000
9	+1	−1	15,000	0.1	179.533	24.3000
10	+1	0	15,000	0.2	178.367	28.2667
11	0	+1	10,000	0.3	182.167	28.2000
12	0	0	10,000	0.2	180.333	29.1000
13	0	−1	10,000	0.1	185.333	29.1000