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March/April 2010
DataPoints

 

Confidence, C

p

0.60

0.75

0.80

0.90

0.95

0.99

0.001

916

1,386

1,609

2,302

2,995

4,603

0.005

183

277

322

460

598

919

0.010

92

138

161

230

299

459

0.020

46

69

80

114

149

228

0.030

31

46

53

76

99

152

0.040

23

34

40

57

74

113

0.050

18

28

32

45

59

90

0.060

15

23

27

38

49

75

0.070

13

20

23

32

42

64

0.080

11

17

20

28

36

56

0.090

10

25

18

25

32

49

0.100

9

14

16

22

29

44

Table 1: Relationship Among Sample Size, n, Confidence, and Demonstrated Process Fraction Non-Conforming When Sampling a Process and x = 0 Non-Conformances Appear

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