Table 10.

Independent variables presented in a relationship with the critical quality attributes with actual and predicted responses obtained from response regression study for the analyzed microemulsions.

Variable	Independent Variables			Dependent Variables
	Oleic Acid (%)	Tween 20 (%)	PEG 400 (%)	1 Ds (Actual) (nm)	Ds (Predicted) (nm)	2 W (Actual) (mN/m)	W (Predicted) (mN/m)	3 D (Actual) (cm2/s)	4 Sqrt(D) (Actual) (cm2/s)	Sqrt(D) (Predicted) (cm2/s)
Code	X1	X2	X3	Y1 actual	Y1 predicted	Y2 actual	Y2 predicted	Y3 actual	Y3 actual	Y3 predicted
ME 1	5	30	10	152.89	156.78	69.56	69.19	2.56·10−5	0.0051	0.0051
ME 2	5	40	10	128.90	131.04	81.69	83.79	2.22·10−5	0.0047	0.0047
ME 3	5	30	20	188.33	181.39	89.05	88.30	1.85·10−5	0.0043	0.0043
ME 4	5	40	20	119.60	125.34	71.98	73.70	2.11·10−5	0.0046	0.0046
ME 5	10	30	10	161.34	153.19	20.22	17.61	2.52·10−6	0.0016	0.0016
ME 6	10	40	10	202.29	209.24	16.09	16.38	5.16·10−6	0.0023	0.0023
ME 7	10	30	20	225.13	222.99	13.50	11.86	2.65·10−6	0.0016	0.0017
ME 8	10	40	20	250.20	248.72	11.84	13.10	1.00·10−5	0.0032	0.0031
ME 9	6.25	35	10	133.57	123.92	52.95	47.56	1.27·10−5	0.0036	0.0036
ME 10	8.75	30	15	144.36	154.01	11.29	16.68	3.43·10−6	0.0019	0.0018

¹ Ds represents the mean droplet size, ² W—mean work of adhesion, ³ D—diffusion coefficient, and ⁴ Sqrt(D)—diffusion coefficient obtained by applying a square root transformation.