PE at border of the AR: power ≤0.05! [Power / Sample Size]

posted by Helmut Homepage – Vienna, Austria, 2016-01-14 02:29 (3320 d 07:42 ago) – Posting: # 15825
Views: 12,126

Dear Detlew,

❝ Seems your statement "... any sample size ... with power exactly 0.05." is not thoroughly correct :cool:.


As usual you are correct. :ok:

Seems that I’ve forgotten my own “Don’t panic!” slide. In the dark ages I used to write in my reports “α ≤0.05” and “≥90% CI” and earned questions.

❝ Think about "The TOST procedure can be quite conservative, i.e. the achieved Type I error rate may be lower than the nominal 0.05 significance level"1


Rightyright. 2×2×2 crossover, CV 30%, n 12–48:

[image]

At GMR 0.8 and sample sizes <49 power starts to drop below 0.05. With n=12 it is only 0.0337.

❝ or "TOST is not the most powerful test".


Leaving the question open: Which is the most powerful test?

Dif-tor heh smusma 🖖🏼 Довге життя Україна! [image]
Helmut Schütz
[image]

The quality of responses received is directly proportional to the quality of the question asked. 🚮
Science Quotes

Complete thread:

UA Flag
Activity
 Admin contact
23,380 posts in 4,914 threads, 1,665 registered users;
74 visitors (0 registered, 74 guests [including 14 identified bots]).
Forum time: 10:12 CET (Europe/Vienna)

When people learn no tools of judgment
and merely follow their hopes,
the seeds of political manipulation are sown.    Stephen Jay Gould

The Bioequivalence and Bioavailability Forum is hosted by
BEBAC Ing. Helmut Schütz
HTML5