1

2

3

4

5

Total

Mean

Variance

Satisfaction rate

Standard error

q21

18

9

1

2

2

32

1.78

1.36

84.38%

0.21

q22

14

12

4

0

2

32

1.88

1.11

81.25%

0.19

q23

3

14

14

0

1

32

2.44

0.62

53.13%

0.14

q24

22

4

2

1

3

32

1.72

1.64

81.25%

0.23

q25

8

19

2

3

0

32

2.00

0.69

84.38%

0.15

q26

4

11

16

0

1

32

2.47

0.69

46.88%

0.15

q28

12

16

3

1

0

32

1.78

0.55

87.50%

0.13

q29

5

23

4

0

0

32

1.97

0.28

87.50%

0.09

q31

5

23

4

0

0

32

1.97

0.28

87.50%

0.09

q34

5

19

6

1

1

32

2.19

0.71

75.00%

0.15

Total

96

150

56

8

10

7.92

76.88%