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RegisterFormula to calculate sample size [Power / Sample Size]
Dear BE-proff,
additional to Helmut's suggestion I would point you to the
As you will see there is no distinct (simple) formula for sample size estimation. Only the power (given CV and n and additionally some design characteristic) can be calculated. The sample size is then iteratively obtained by varying n until the desired power is achieved.
Hope this helps.
❝ What is/are formula/as used by sampleN.TOST to calculate sample size of different study designs? 
❝ I am interested in "exact" method.
additional to Helmut's suggestion I would point you to the
\doc sub-directory of the package PowerTOST. It contains a PDF file BE_power_sample_size_excerpt.pdf which deals in a short cursory manner with power / sample size estimation of the TOST procedure.As you will see there is no distinct (simple) formula for sample size estimation. Only the power (given CV and n and additionally some design characteristic) can be calculated. The sample size is then iteratively obtained by varying n until the desired power is achieved.
Hope this helps.
—
Regards,
Detlew
Regards,
Detlew
Complete thread:
- Formula to calculate sample size BE-proff 2016-11-07 21:53
![[Mix]](https://static.bebac.at/img/mix.png "open in Mix view")
- Formula to calculate sample size Helmut 2016-11-07 22:10
- Formula to calculate sample sized_labes 2016-11-08 08:29
Ing. Helmut Schütz