Exact Group Sequential Methods for Estimating a Binomial Proportion

Table 3

Coverage tuning parameter.

	𝑠=3	𝑠=4	𝑠=5	𝑠=6	𝑠=7	𝑠=8	𝑠=9	𝑠=10
𝜀=0.1	3.3322	3.3322	3.3322	3.3322	3.3322	3.2709	3.0782	3.3322
𝜀=0.05	3.5074	3.5074	3.5074	3.5074	3.5074	3.5074	3.5074	3.5074
𝜀=0.02	3.5430	3.5430	3.5430	3.5430	3.5430	3.5430	3.5430	3.5430
𝜀=0.01	3.5753	3.5753	3.5753	3.5753	3.5753	3.5753	3.5753	3.5753