FAQ/tab902 - CBU statistics Wiki
Self: FAQ/tab902

Sample sizes required per group for 90 power with a two-tailed test of the difference in two independent proportions

The proportions for the two groups are represented by the row and column proportions.

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

0.1

269

85

45

28

20

15

11

9

0.2

395

111

54

32

22

15

11

0.3

479

127

58

33

22

15

0.4

521

132

58

32

20

0.5

521

127

54

28

0.6

479

111

45

0.7

395

85

0.8

269

None: FAQ/tab902 (last edited 2013-03-08 10:17:40 by localhost)