PubMed · 3568695
A sample size program for "proving the null hypothesis".
Abstract
A flexible APL computer program is presented for assistance in planning clinical trials designed to test the equivalence of two therapies. It is a substitute for the sample size graphs of Blackwelder and Chang and provides the option to calculate any of the six characteristics--sample size, significance level, power, success probability of standard therapy, success probability of experimental therapy, and minimum difference of interest--if five of them are prespecified.
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C Heiselbetz, L Edler. 1987. A sample size program for "proving the null hypothesis".. https://doi.org/10.1016/0197-2456(87)90024-9
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