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From |
Richard Williams <Richard.A.Williams.5@nd.edu> |

To |
statalist@hsphsun2.harvard.edu |

Subject |
Re: st: Finite population correction when testing equality of two proportions |

Date |
Fri, 01 Apr 2005 15:06:51 -0500 |

At 09:41 PM 4/1/2005 +0200, Fredrik Nyberg wrote:

Hi all StatalistersMy initial inclination is to go to sample 1 and code each case as 1 if not in sample 2, 2 if in sample 2. Then, use the -prtest- command to compare the 2 groups. But, my initial inclinations have been wrong before. The -prtest- command is discussed on the last page of this handout:

I am wondering about testing two proportions in the following setting:

Infinite overall population size (for all practical purposes)

Sample 1 taken from overall population

Sample 2 subsampled from sample 1

Since these are not two independent samples from the same overall population, I think I need to adjust the test by making a finite population correction somehow for sampling sample 2 from sample 1. Only I can't find any details on this nor a test that appears suitable in Stata.

Can anyone help?

What is the correct test?

Is there Stata-code available?

http://www.nd.edu/~rwilliam/xsoc592/lectures/TwoSample-Stata.pdf

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**Follow-Ups**:**Re: st: Finite population correction when testing equality of two proportions***From:*Fredrik Nyberg <fredrik.nyberg@imm.ki.se>

**References**:**st: Finite population correction when testing equality of two proportions***From:*Fredrik Nyberg <fredrik.nyberg@imm.ki.se>

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