Sample size

α = 0.01

α = 0.05

α = 0.10

25

10.61

7.24

5.91

50

9.31

6.73

5.61

100

8.73

6.49

5.47

250

8.43

6.34

5.39

500

8.34

6.30

5.36

>500

8.27

6.25

5.34