Mean Estimates of Alert and Action Limits Based on 1000 Simulated Data Sets
| Sample Size | Limit | True Limits | ZINB* | Normal | Poisson | Negative Binomial |
|---|---|---|---|---|---|---|
| 100 | Alert | 5 | 5.1 (0.49) | 4.5 (0.53) | 3.6 (0.50) | 5.9 (0.64) |
| Action | 7 | 7.1 (0.70) | 5.7 (0.60) | 4.8 (0.46) | 10.2 (1.12) | |
| 1000 | Alert | 5 | 5.0 (0.04) | 4.4 (0.48) | 3.6 (0.48) | 6.0 (0.16) |
| Action | 7 | 7.0 (0.19) | 5.9 (0.30) | 5.0 (0.17) | 10.1 (0.40) | |
| 10000 | Alert | 5 | 5.0 (0.00) | 4.1 (0.35) | 3.9 (0.31) | 6.0 (0.00) |
| Action | 7 | 7.0 (0.00) | 6.0 (0.00) | 5.0 (0.00) | 10.0 (0.04) |
↵* Numbers in parentheses are the standard deviation (SD).