Use the paired data consisting of brain volume cm3 and IQ sc

Use the paired data consisting of brain volume (cm³) and IQ score. Use the data to test for rank correlation with a 0.05 significance level.

IQ score

96

89

87

87

101

103

103

96

127

126

Brain Volume (cm³)

1005

963

1035

1027

1281

1272

1051

1079

1034

1070

IQ score

101

96

93

88

94

85

97

114

113

124

Brain Volume (cm³)

1173

1079

1067

1104

1347

1439

1029

1100

1204

1160

Solution

cirical value is 2.1 reject H0 that the data is uncorrelated