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Simulated power, in percentages, for rejecting the null hypothesis of 
based on 1000 replications fitted to the mis-specified two-part model with independent random cluster effects for each sample size when the null hypothesis is not true
| Case | Sample size | ||
|---|---|---|---|
| 1000 | 2000 | 3000 | |
Case 2:  ,  , and 
|
47.0 | 78.3 | 93.4 |
Case 3:  and 
|
25.8 | 47.2 | 71.9 |
Case 4:  ,  , and 
|
69.8 | 95.9 | 99.5 |
