fo

fe

(fo − fe)

(fo − fe)2

(fo − fe)2/fe

χ2 table

Decision

22

19.62

2.38

5.66

0.29

3.84

Ho Rejected

13

19.62

−6.62

43.84

2.23

15

13.62

1.38

1.90

0.14

16

13.62

2.38

5.66

0.42

χ2 = (fo − fe)2/fe

3.08