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Re: st: How do I demonstrate that a sample is randomly drawn from a population?


From   Dan Waldo <[email protected]>
To   "[email protected]" <[email protected]>
Subject   Re: st: How do I demonstrate that a sample is randomly drawn from a population?
Date   Mon, 15 Apr 2013 05:18:22 -0700 (PDT)

Dear Yuval,

Because I lurk on the Statalist, my replies are late (and often lame, but that's another story).

As an afterthought to this discussion thread, I'd make a semantic distinction: your reweighted internet students still do not represent a *random* sample. Rather, they are *representative* of the population in the dimensions on which you post-stratified. They still might not look like the population in other dimensions -- either observed or unobserved.

regards,
Dan Waldo

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