Sample size for the FDA NTID BE decision [Outliers]

posted by d_labes  – Berlin, Germany, 2017-10-05 19:25 (2422 d 10:27 ago) – Posting: # 17864
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Dear pjs,

❝ ... is there any program to calculate the sample size for which upper limit of the 90% equal-tails confidence interval for σWT/σWR can be lesser than 2.5.

Not exactly what you have requested, but the whole BE decision. Namely: For deciding BE the study must pass the 95% upper CI of the linearized RSABE criterion <0, the conventional ABE test and additionally the test that the ratio of sWT/sWR is <= 2.5.
R package PowerTOST has the functions power.NTIDFDA() / sampleN.NTIDFDA()

Have a look if this fits your needs.



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