Welch/Satterthwaite in practice [General Sta­tis­tics]

posted by yicaoting  – NanKing, China, 2011-09-29 18:29 (5384 d 22:28 ago) – Posting: # 7395
Views: 19,710

Dear ElMaestro,
I think the key point of your task is the calculation of TINV(p, df) where df is not an integer in Excel.

Generally, it is impossible to do it.
But fortunately, you can use the FUNCTION NcTinv() which is nearly identical to Tinv() in SAS.

FUNCTION NcTinv() was developed by Dr. Russel Lenth, and could be accessed via FARTSSIE17, it is a user-defined function for Excel.

Usage of FUNCTION NcTinv() in Excel need some basic understanding of VBA for MS Excel.

Wish it help you.

BTW: I have tried it, the result was satisfactory.

My English is not very smooth, hope you can understand my posting.

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