| |
|
Planned Sample Sizes |
|
Actual Sample Size at Stage 1 |
Adjusted Design by the end of Stage 1 |
|
|
|
|
|
Actual total Sample Size |
Attained Design Proposed |
|
|
|
|
Green & Dahlberg |
|
|
|
|
| p0 |
p1 |
n1 |
n |
n1* |
n* |
a* |
c* |
α* |
1-β* |
AVE N |
n** |
a* |
c** |
α* |
1-β* |
AVE N |
a* |
c** |
α* |
1-β* |
AVE N |
| 0.05 |
0.2 |
19 |
38 |
17 |
33 |
0 |
3 |
0.078 |
0.91 |
26.3 |
31 |
0 |
3 |
0.065 |
0.89 |
25.1 |
0 |
3 |
0.065 |
0.89 |
25.1 |
| |
|
|
|
17 |
|
|
|
|
|
|
35 |
0 |
3 |
0.091 |
0.93 |
27.5 |
0 |
3 |
0.091 |
0.93 |
27.5 |
| |
|
|
|
21 |
34 |
1 |
3 |
0.078 |
0.9 |
24.7 |
32 |
1 |
3 |
0.068 |
0.89 |
24.1 |
0 |
3 |
0.073 |
0.91 |
28.3 |
| |
|
|
|
21 |
|
|
|
|
|
|
36 |
1 |
3 |
0.088 |
0.92 |
25.2 |
0 |
4 |
0.032 |
0.87 |
30.9 |
| 0.1 |
0.3 |
17 |
33 |
15 |
30 |
1 |
5 |
0.068 |
0.91 |
21.7 |
28 |
1 |
5 |
0.053 |
0.88 |
20.9 |
0 |
5 |
0.055 |
0.89 |
25.3 |
| |
|
|
|
15 |
|
|
|
|
|
|
32 |
1 |
5 |
0.086 |
0.93 |
22.7 |
0 |
5 |
0.093 |
0.95 |
28.5 |
| |
|
|
|
19 |
30 |
2 |
5 |
0.067 |
0.91 |
22.2 |
28 |
2 |
5 |
0.052 |
0.88 |
21.7 |
1 |
5 |
0.055 |
0.89 |
24.2 |
| |
|
|
|
19 |
|
|
|
|
|
|
32 |
2 |
5 |
0.083 |
0.92 |
22.8 |
1 |
5 |
0.092 |
0.95 |
26.5 |
| 0.2 |
0.4 |
20 |
40 |
18 |
37 |
3 |
10 |
0.098 |
0.91 |
27.5 |
35 |
3 |
10 |
0.072 |
0.88 |
26.5 |
2 |
10 |
0.074 |
0.89 |
30.4 |
| |
|
|
|
18 |
|
|
|
|
|
|
39 |
3 |
11 |
0.07 |
0.9 |
28.5 |
2 |
11 |
0.073 |
0.91 |
33.3 |
| |
|
|
|
22 |
38 |
5 |
10 |
0.099 |
0.9 |
26.3 |
36 |
5 |
10 |
0.078 |
0.88 |
25.7 |
4 |
10 |
0.086 |
0.9 |
28.4 |
| |
|
|
|
22 |
|
|
|
|
|
|
40 |
5 |
11 |
0.073 |
0.89 |
26.8 |
4 |
11 |
0.083 |
0.92 |
30.2 |
| 0.3 |
0.5 |
21 |
42 |
19 |
55 |
6 |
20 |
0.09 |
0.9 |
31 |
53 |
6 |
20 |
0.068 |
0.89 |
30.4 |
4 |
20 |
0.084 |
0.95 |
43.4 |
| |
|
|
|
19 |
|
|
|
|
|
|
57 |
6 |
21 |
0.078 |
0.9 |
31.7 |
4 |
21 |
0.1 |
0.96 |
46.3 |
| |
|
|
|
23 |
45 |
7 |
17 |
0.089 |
0.91 |
31.4 |
43 |
7 |
17 |
0.062 |
0.87 |
30.6 |
6 |
17 |
0.065 |
0.89 |
34.2 |
| |
|
|
|
23 |
|
|
|
|
|
|
47 |
7 |
18 |
0.075 |
0.9 |
32.2 |
6 |
18 |
0.081 |
0.92 |
36.4 |
| 0.4 |
0.6 |
25 |
49 |
23 |
55 |
10 |
26 |
0.082 |
0.9 |
32.1 |
53 |
10 |
25 |
0.087 |
0.9 |
31.6 |
8 |
26 |
0.068 |
0.93 |
41.3 |
| |
|
|
|
23 |
|
|
|
|
|
|
57 |
10 |
27 |
0.077 |
0.9 |
32.8 |
8 |
27 |
0.098 |
0.96 |
43.8 |
| |
|
|
|
27 |
49 |
12 |
23 |
0.099 |
0.91 |
32.5 |
47 |
12 |
23 |
0.07 |
0.88 |
32 |
10 |
23 |
0.081 |
0.92 |
37.8 |
| |
|
|
|
27 |
|
|
|
|
|
|
51 |
12 |
24 |
0.093 |
0.91 |
33 |
10 |
25 |
0.072 |
0.92 |
40 |
| 0.5 |
0.7 |
24 |
47 |
22 |
41 |
11 |
24 |
0.098 |
0.91 |
29.9 |
39 |
11 |
23 |
0.095 |
0.89 |
29.1 |
10 |
23 |
0.099 |
0.9 |
31.9 |
| |
|
|
|
22 |
|
|
|
|
|
|
43 |
11 |
26 |
0.06 |
0.87 |
30.7 |
10 |
26 |
0.062 |
0.88 |
34.3 |
| |
|
|
|
26 |
43 |
14 |
25 |
0.096 |
0.91 |
30.7 |
41 |
14 |
24 |
0.094 |
0.9 |
30.2 |
13 |
25 |
0.058 |
0.86 |
32.3 |
| |
|
|
|
26 |
|
|
|
|
|
|
45 |
14 |
26 |
0.098 |
0.91 |
31.3 |
13 |
27 |
0.066 |
0.9 |
34 |
| 0.6 |
0.8 |
20 |
39 |
18 |
38 |
11 |
26 |
0.096 |
0.91 |
25.5 |
36 |
11 |
25 |
0.083 |
0.89 |
24.7 |
10 |
25 |
0.089 |
0.91 |
28.1 |
| |
|
|
|
18 |
|
|
|
|
|
|
40 |
11 |
28 |
0.064 |
0.89 |
26.2 |
10 |
28 |
0.069 |
0.91 |
30.4 |
| |
|
|
|
22 |
38 |
14 |
26 |
0.094 |
0.91 |
26.6 |
36 |
14 |
25 |
0.082 |
0.89 |
26.1 |
13 |
25 |
0.089 |
0.91 |
28.4 |
| |
|
|
|
22 |
|
|
|
|
|
|
40 |
14 |
28 |
0.064 |
0.89 |
27.2 |
13 |
28 |
0.069 |
0.91 |
30.2 |
| 0.7 |
0.9 |
15 |
29 |
13 |
29 |
9 |
23 |
0.086 |
0.92 |
19.7 |
27 |
9 |
22 |
0.058 |
0.87 |
18.9 |
8 |
22 |
0.059 |
0.87 |
22.1 |
| |
|
|
|
13 |
|
|
|
|
|
|
31 |
9 |
25 |
0.059 |
0.9 |
20.6 |
8 |
25 |
0.062 |
0.92 |
24.8 |
| |
|
|
|
17 |
31 |
13 |
24 |
0.094 |
0.91 |
19.8 |
29 |
13 |
23 |
0.074 |
0.89 |
19.4 |
12 |
23 |
0.09 |
0.93 |
21.7 |
| |
|
|
|
17 |
|
|
|
|
|
|
33 |
13 |
26 |
0.07 |
0.9 |
20.2 |
12 |
26 |
0.088 |
0.95 |
23.2 |
|
