N | Mean | Std. deviation | t | df | Sig. (1-tailed) | |
Test value = 4 | ||||||
B. subtilis | 32 | 2.3946 | 2.53981 | −3.576 | 31 | 0.001 |
S. aureus | 32 | 3.9768 | 4.21354 | −0.031 | 31 | 0.975 |
Test value = 8 | ||||||
Klebsiella sp | 31 | 1.9595 | 2.5984 | −12.943 | 30 | 0.000 |
Salmonella sp | 31 | 1.879 | 2.50943 | −13.581 | 30 | 0.000 |
E. coli | 32 | 2.17993 | 1.55635 | −21.154 | 31 | 0.000 |