[R] sample size determination - comparing means for different size samples

David Winsemius dwinsemius at comcast.net
Fri Jun 7 06:10:32 CEST 2013

This is a duplicate question, right?

On Jun 6, 2013, at 12:58 PM, Rebecca Greenblatt wrote:

> Looking to determine sample sizes for both my experimental and control
> groups (I want only a small portion of my participants in my experimental
> condition) in order to compare population means. I would be able to
> estimate standard deviation beforehand.
> I'm using the bpower function from the Hmisc R package, specifically
> bsamsize to compare population proportions, but was wondering if there was
> an equivalent function for comparing means.
> -- 
> Rebecca Greenblatt
> 	[[alternative HTML version deleted]]

David Winsemius
Alameda, CA, USA

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