Std	Variables				Responses
	X₁	X₂	X₃	X₄	wt% (Y₁)		Fe₂O₃, ppm (Y₂)		Al₂O₃, ppm (Y₃)
	X₁	X₂	X₃	X₄	Actual	predicted	Actual	predicted	Actual	predicted
1	4	4	1500	20	97.62	97.40	160	166.25	720	670
2	5	3	1250	30	98.23	98.16	90	115	910	864.17
3	4	3	1250	20	98.2	98.29	70	43.4	550	544
4	3	4	1250	20	98.43	98.75	150	143.75	700	722.92
5	3	3	1500	20	98.16	98.19	70	51.25	690	691.25
6	4	3	1250	20	98.12	98.29	60	43.4	560	544
7	5	3	1000	20	98.16	98.06	210	191.25	760	779.58
8	4	4	1000	20	98.55	98.45	130	166.25	670	673.33
9	5	4	1250	20	98.22	98.28	90	91.25	770	807.92
10	4	2	1250	10	97.8	97.77	90	71.25	710	757.92
11	4	3	1250	20	98.23	98.29	29	43.4	570	544
12	4	4	1250	10	97.75	97.72	170	151.25	620	632.92
13	4	2	1000	20	98.25	98.15	110	116.25	730	653.33
14	3	3	1250	30	97.84	97.59	80	97.5	820	779.17
15	4	3	1000	30	98.49	98.70	70	67.5	680	742.08
16	4	3	1250	20	98.63	98.29	29	43.4	540	544
17	3	3	1250	10	98.4	98.15	230	247.5	710	714.17
18	5	3	1250	10	96.71	96.64	100	125	850	799.17
19	4	3	1250	20	98.28	98.29	29	43.4	500	544
20	3	3	1000	20	98.78	98.66	60	41.25	680	669.58
21	4	4	1250	30	98.03	98.00	130	111.25	870	842.92
22	4	3	1500	10	96.52	96.70	90	87.5	690	673.75
23	5	3	1500	20	97.8	97.85	180	161.25	720	751.25
24	3	2	1250	20	98.36	98.62	160	168.75	680	702.92
25	4	3	1000	10	96.05	96.26	370	367.5	650	652.08
26	4	2	1500	20	98.75	98.54	80	116.25	660	650
27	4	2	1250	30	96.84	96.81	390	371.25	670	677.92
28	4	3	1500	30	97.41	97.59	110	107.5	670	713.75
29	5	2	1250	20	98.03	98.15	130	116.25	780	116.25