Margins of error around ACS 5-year estimates is about 1.75 times as large as those associated with the 2000 Census Long Form estimates. I assume NY Time’s maps (percentage changes) already accounted for MOEs. But it would be nice to put a MOE note for those absolute numbers they are presenting.
From: ctpp-news-bounces@chrispy.net [mailto:ctpp-news-bounces@chrispy.net] On Behalf Of Nancy Jones
Sent: Wednesday, December 15, 2010 12:14 PM
To: ctpp-news@chrispy.net
Subject: RE: [CTPP] Mapping America using ACS2005-2009 from NY Times
Hi Liang and others:
I agree that the interactive map they put together is amazing. However, I am interested to know what everyone thinks about their exclusion of margins of error. Note, they did present change since 2000 for the measures they show, with no mention of MOE’s. Thoughts?
Nancy
Nancy Jones
Data Manager
Baltimore Neighborhood Indicators Alliance - Jacob France Institute
University of Baltimore
njones@ubalt.edu
410-837-4015
From: ctpp-news-bounces@chrispy.net [mailto:ctpp-news-bounces@chrispy.net] On Behalf Of Liang Long
Sent: Wednesday, December 15, 2010 11:04 AM
To: ctpp-news@chrispy.net
Subject: [CTPP] Mapping America using ACS2005-2009 from NY Times
I was reading the NY Times on my way to work today and found out there are a serious of articles about ACS2005-2009. The most amazing thing is that they developed this interactive map at the Census Tract level for the whole nation. The maps show household income, home value, education and race and ethnicity at each tract and also the percentage change from the Census 2000.
Here is the link. You got to check this out!
http://projects.nytimes.com/census/2010/explorer?ref=us
Liang Long
Cambridge Systematics, Inc.
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