Application of Design of Experiment for Polyox and Xanthan Gum Coated Floating Pulsatile Delivery of Sumatriptan Succinate in Migraine Treatment

Table 7

Comparisons of predicted values and observed values.

Polymer	Coded level	Actual level	Responses	Hardness	Swelling index
			Predicted values	6.002	228.18
			Observed values	6	226
Polyox WSR205	1	180	Standard deviation	0.2359	3.098
Xanthan gum	−1	45	Standard error mean	0.2049	2.6919