Don’t weight by 1/s² [Bioanalytics]

posted by Helmut Homepage – Vienna, Austria, 2019-03-18 11:19  – Posting: # 20046
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Hi nobody, Ohlbe and everybody,

» » In his response Helmut mentions SD calculated from 2 or 3 replicates. Sorry Helmut, but I would consider any such value as meaningless.
»
» Exactly. Trash in trash out. SD is not erwartungstreu. Start with n=20+...

I stand corrected – you are both right. Is a stupid idea.

Cheers,
Helmut Schütz
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