I am curious about the sample error outputs from the microdata replicate weights vs those supplied by the official data tables on data.gov. I have done a quick tabulation by sex in Philadelphia County. While the estimates are roughly equal to what is showing on data.gov, the margins of error are much larger.
I calculated the margin of error with a 90% confidence interval, as suggested by the Census Bureau.
Is this variance between the microdata sample and the official tabulations typical? Are the official margins of error calculated with a different method?