Gender

N

Speech Frequency (2007 Edition)

3 kHz

4 kHz (2014 Edition)

6 kHz

n

%

n

%

χ²

P

n

%

χ²

P

n

%

χ²

P

Male

154

98

63.64

112

72.73

2.933

0.087

119

77.27

6.878

0.009

122

79.22

9.164

0.002

Female

14

10

71.43

11

78.57

-

-

12

85.71

-

-

12

85.71

-

-

Total

168

108

64.29

123

73.21

3.117

0.077

131

77.98

9.880

0.002

134

79.76

9.985

0.002

χ²-value

0.339

0.224

0.533

0.335

P-value

0.560

0.636

0.466

0.563

3 kHz + 4 kHz

3 kHz + 6 kHz

4 kHz + 6 kHz

3 kHz + 4 kHz + 6 kHz

n

%

χ²

P

n

%

χ²

P

n

%

χ²

P

n

%

χ²

P

117

75.97

5.561

0.018

117

75.97

5.561

0.018

122

79.22

9.164

0.002

119

77.27

6.878

0.009

12

85.71

-

-

12

85.71

-

-

12

85.71

-

-

12

85.71

-

-

129

76.79

6.315

0.012

129

76.79

6.315

0.012

134

79.76

9.985

0.002

131

77.98

9.880

0.002

0.683

0.683

0.335

0.533

0.409

0.409

0.563

0.466