Example 14.28

EXAMPLE 14.28 Choosing the Sample Size for a Future Study

CASE 14.2 To decide on an appropriate sample size for the experiment described in the previous example, we repeat the power calculation for different values of , the number of subjects in each group. Here are the results:

	DFG	DFE			Power
20	2	57	3.16	7.35	0.65
30	2	87	3.10	11.02	0.84
40	2	117	3.07	14.69	0.93
50	2	147	3.06	18.37	0.97
100	2	297	3.03	36.73	≈ 1