Table 1:

Statistical table

	Data structure	Type of test	p value
a	Normal distribution	Paired t test	0.0045
b	Normal distribution	Paired t test	0.6
c	Normal distribution	Paired T test	0.01
d	Normal distribution	Paired t test	0.0089
e	Normal distribution	Paired t test	0.16
f	Normal distribution	Paired t test	0.41
g	Normal distribution	Paired t test	0.029
h	Normal distribution	Unpaired t test	0.92
i	Normal distribution	Unpaired t test	0.0015
j	Normal distribution	Unpaired t test	≤0.0001
k	Normal distribution	Paired t test	0.028
l	Normal distribution	Paired t test	≤0.0001
m	Normal distribution	Paired t test	0.012
n	Normal distribution	Paired t test	0.054
o	Normal distribution	Paired t test	0.22
p	Normal distribution	Paired t test	0.034
q	Normal distribution	Paired t test	0.044
r	Normal distribution	Unpaired t test	0.023