Segregated workplaces

[diwana]

Re: Segregated workplaces

@ravage

Do you have a mathematical background diwana? Just want to clarify before I answer your question.

Could you answer please.

Will be glad to learn.

Oh sorry just saw above. You answered.

@ravage

All i’ll tell you is to read up on the central limit theorem, see how sample sizeswork with respect to confidence levels and margins of error. 1000-2000 is a perfectly reasonable sample size, given the confidence level and margin of error they are aiming for. See this online calculator of sample size (which uses a relatively unsophisticated random sampling model, as opposed to the stratified sampling used by Pew)

Let me read that and answer back. Add anything else in the meantime. I still do not buy your answer.

Added:

OK. The sites you posted are merely what the meaning/understanding of population size concept is and a calculator.
Both sites you posted are not the answer by themselves.

So what is your take on it (based on the sites you posted) to prove the ‘study’ you mentioned above has valid results??

If you say 1000 and 2000 sample size is enough to draw valid conclusion on about 180 million total population, then think again, or provide clear answer.

Thanks.

P.S. You can be refuted based on your own links.