Nominal α [Power / Sample Size]

posted by Helmut Homepage – Vienna, Austria, 2020-06-09 11:49 (342 d 03:06 ago) – Posting: # 21516
Views: 2,121

Hi arl_stat,

» Please help me to understand the alpha value considered for sample size estimation.

α is the nominal level of the test. In BE generally 0.05, which gives a two-sided 100 × (1 – 2α) = 90% CI. α is fixed by the authority, i.e., you are not free to choose it in sample size estimation.

Dif-tor heh smusma 🖖
Helmut Schütz
[image]

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

Complete thread:

Activity
 Admin contact
21,462 posts in 4,487 threads, 1,514 registered users;
online 13 (0 registered, 13 guests [including 11 identified bots]).
Forum time: Monday 14:55 CEST (Europe/Vienna)

Garbage in, garbage out.
It’s very very simple.    Anders Fuglsang

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