Total

Chi-square

Dif

Fi

Fi%

Sig.

A4

Satisfactory

44

20.80%

62.670

Unsatisfactory

125

59.00%

2

Do not know or do not know the demonstration

43

20.30%

0.000

A5

Satisfactory

73

34.40%

1.708

Unsatisfactory

62

29.20%

2

Do not know or do not know the demonstration

77

36.30%

0.426

A6

Satisfactory

118

55.70%

53.104

Unsatisfactory

33

15.60%

2

Do not know or do not know the demonstration

61

28.80%

0.000