Report Year

α

df

X²

Cut off for X²

H_O

2012

0.05

8

20.74

15.51

Rejected

2013

0.05

8

22.97

15.51

Rejected

2014

0.05

8

11.35

15.51

Accepted

2nd digit 2014

0.05

9

11.04

16.92

Accepted

2012-2014

0.05

26

47.60

38.89

Rejected