group (1)

group (2)

x²

P

Group A (4 - ≤5.5),

6 (13.3)

2 (6.5)

3.14

0.37

Group B (>5.5 - ≤6.25

19 (42.2)

18 (58.1)

Group C (>6.25 - ≤7.25)

20 (44.4)

11 (35.5)