Hi! I usually run trend analysis on poverty rates between two two 5-year periods for all the ZCTAs in my county (currently 08-13, and 14-18). I am considering testing recent poverty rate estimates for all ZCTAs in my county against the overall poverty rate for the county to highlight ZCTAs with significantly higher/lower rates than the county overall. I am not a stats expert and wondering if anyone here could point out any statistical reason I shouldn't do it this way. Thanks!