Total

Chi-square

Dif

Fi

Fi%

Sig.

A7

Satisfactory

93

43.90%

50.387

Unsatisfactory

22

10.40%

2

Do not know or do not know the demonstration

97

45.80%

0.000

A8

Satisfactory

47

22.20%

31.764

Unsatisfactory

56

26.40%

2

Do not know or do not know the demonstration

109

51.40%

0.000

A9

Satisfactory

57

26.90%

50.387

Unsatisfactory

37

17.50%

2

Do not know or do not know the demonstration

118

55.70%

0.000