Improvements and extensions to simulation interval procedures

The paper presents improvements to two common confidence interval procedures: the two stage Student´s t intervals and the paired t intervals. Further, we provide a conservative extension to the paired t intervals to deal with any finite number of alternatives. Also, we include an approximate procedure that performs better with large numbers of alternatives. These procedures have been presented previously (F.J. Matejcik and B.L. Nelson, 1993), but special elementary cases, revised notation, and comparison to common methods should make these procedures accessible to a broader audience. Numerical examples are included