w********5
发帖数: 72 | 1 I am working on a survey project. kind of confusion about the methodology
and results. please give me
some suggestion.
1. I know sampling can give very good predictionif designed properly. Is it
worth surveying million of
person? if we do survey million of person, will the result more accurate
than sampling?
2. after surveyed million of person, if we average different variables for
different group, the results are
going to be significant because the large sample. Are they actually
significant | C******y
发帖数: 2007 | 2 你所做的就是需要了解一下 type I error ，type II error与 sample size之间的关
系，网上找点文章一会儿就明白了
it
【在 w********5 的大作中提到】
: I am working on a survey project. kind of confusion about the methodology
: and results. please give me
: some suggestion.
: 1. I know sampling can give very good predictionif designed properly. Is it
: worth surveying million of
: person? if we do survey million of person, will the result more accurate
: than sampling?
: 2. after surveyed million of person, if we average different variables for
: different group, the results are
: going to be significant because the large sample. Are they actually
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