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Table 1 Sample size requirement for testing a normal distribution

From: APOBEC3G levels predict rates of progression to AIDS

 

α = 0.05, power

D

0.05, 0.9

0.05, 0.8

0.05, 0.7

0.05, 0.6

0.05, 0.5

0.2

101

80

66

56

46

0.22

83

66

54

46

38

0.24

70

56

46

39

32

0.26

60

47

39

33

27

0.28

52

41

33

28

24