Table 3.
Analysis of variance results (F test) for thickness swelling

Treatments	Sum of Square	df	F value	sig
Concentration	9.594	5	6.959**	0.001
Pressure time	2.832	6	2.851*	0.005

Highly significantly different (P ≤ 0.001)
Significantly different (P ≤ 0.005)