Out of other options, I was wondering if I could calculate required sample size using #SAS for one of my surveys. Here are the details - population size: 6000; error tolerance: 5%; expected response rate: 25%; Confidence Interval: 95%. I know the answer but couldn't do it in SAS. Any help would be highly appreciated. Thanks, Ash
Ash: A nice paper that describes how to do it using a data step can be found at:
http://analytics.ncsu.edu/sesug/2011/ST05.Putnam.pdf
Art
Read the SAS/STAT documentation about PROC POWER. If your survey is a complex sample survey with design effects and respondent sampling weights, you'll have to consider the estimated design effect [=the ratio of the variance for the complex survey to the variance from a survey using simple random sample] possibly from previous, similar surveys.
Ash: A nice paper that describes how to do it using a data step can be found at:
http://analytics.ncsu.edu/sesug/2011/ST05.Putnam.pdf
Art
Hi Art - This is the right paper I was looking for. It's helpful. Thanks a bunch, Ash
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