Table 1.

Differentiation between pre- and post-test value of Group A and B on peak expiratory flow ratein young adult smokers

Group	Mean	SD	t-value	Sig
A	287.1	103.32	556	.581
	283.2	90.36
B	279.7	103.63	12.34	.000
	367.2	92.56

This table displays that the mean value of Group A pre-test is 287.1 and the post-test is 283.2 and there was no noticeable difference between pre and post-test value of the Group A (p > 0.05), the mean value of Group B pre- test is 279.7 and the post-test is 367.2 and there was a noticeable difference between the pre- and post-test value of the Group B (p < 0.05).