Reason

Misungwi

Magu

Lamadi

All

Chi-square value

Kill germs

32 (86.5)

79 (96.3)

84 (83.2)

195 (88.6)

χ² = 17.411

df = 6

p = 0.008

Remove bad smell

2 (5.4)

2 (2.4)

3 (3.0)

7 (3.2)

Improve taste

1 (2.7)

1 (1.2)

13 (12.9)

15 (6.8)

Don’t know

2 (5.4)

0 (0.0)

1 (1.0)

3 (1.4)