Sample Size Calculator for Barnard designs in
clinical trial, two samples, two stages
The hypotheses to be tested are of the form:
H0: p1=p2
H1: p1>p2
Enter the following information from your study*:
p1:
0.10
0.15
0.20
0.25
0.30
0.35
0.40
0.45
0.50
0.55
0.60
0.65
0.70
p2:
0.05
0.10
0.15
0.20
Type I Error:
from 0.01 to 0.25
Power:
from 0.65 to 0.95
