FIGURE 3.

Probability of rejecting both hypotheses (left) and probability of rejecting the first but not the second hypothesis (right) under $\mathit{\theta }=(0.5,{\theta }^{(2)})$ and ${\theta }^{(2)}\in \{0,0.1,0.2,0.3,0.4,0.5\}$ for the 3‐arm 2‐stage ORD design when it is powered at 80% to reject both hypotheses under $\mathit{\theta }=(0.5,0.5)$. ORD uses the selected combination of bounds which control the type I error under $\mathit{\theta }=(\infty ,0)$. Results are provided using $10^6$ replications