Distribution | binomial (i.e. no overdispersion); beta-binomial; negative-binomial |
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overdispersion parameter (φ) | 8e-06, 2e-05, 4.3e-05 for beta-binomial; 0.17, 0.42, 0.95 for negative binomial |
number of samples in groups A and B | 5 in each group |
mean proportion in group A (p A ) | 1, 5, 10, 20, 50, and 100 out of 50,000 |
ratio of mean proportions (p B / p A ) | 1, 2 and 4 |