P
0
:
0.05
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
Uninteresting
Response Rate
P
1
-
P
0
:
0.2
0.15
Difference between
P
1
and
P
0
P
1
: Desirable Response Rate
Alpha:
0.05
0.1
Type I error
Beta:
0.1
0.2
Type II error (1-power)
Rho:
0.2
0.5
0.8
Degree of Correlation