RE: [CTPP] ACS 2005-09 data

What I would like to know is how much MOE is too much to be useful? I have been looking at the census tract MOE's for certain variables in my region and they range from 25% to 200%. It's not pretty. And that's not even the obscure sub-categories. Where do other people draw the line when determining data reliability? Mara Mara Kaminowitz GIS Analyst ......................................................................... Baltimore Metropolitan Council Offices at McHenry Row 1500 Whetstone Way Suite 300 Baltimore, MD 21230 410-732-0500 ext. 1030 <mailto:mkaminowitz@baltometro.org> mkaminowitz(a)baltometro.org <http://www.baltometro.org> www.baltometro.org _____ From: Graham, Todd [mailto:todd.graham@metc.state.mn.us] Sent: Wednesday, December 22, 2010 10:27 AM To: ctpp-news(a)chrispy.net Subject: RE: [CTPP] ACS 2005-09 data It's all basic statistics. Our State Demographer's Office took the Census-provided documentation for error calculation and built a general, multi-purpose spreadsheet. It's ready to use, and a big time saver.. Statistical Significance Calculator (excel file): www.demography.state.mn.us/documents/StatisticalCalculationsMenu.xls All you need to do is plug in the "n", etc., and you'll have what you need. ________________________ Todd Graham Principal Forecaster Metropolitan Council 390 Robert Street North Saint Paul, MN 55101 ph: 651/602-1322 email: <mailto:todd.graham@metc.state.mn.us> todd.graham(a)metc.state.mn.us in: www.linkedin.com/in/toddgraham web: http://stats.metc.state.mn.us/ ________________________ From: ctpp-news-bounces(a)chrispy.net [mailto:ctpp-news-bounces@chrispy.net] On Behalf Of Krishnan Viswanathan Sent: Wednesday, December 22, 2010 8:23 AM To: ctpp-news(a)chrispy.net Subject: Re: [CTPP] ACS 2005-09 data Look here for details: http://www.census.gov/acs/www/guidance_for_data_users/handbooks/ and the document what Researchers need to know will help you too: http://www.census.gov/acs/www/Downloads/handbooks/ACSResearch.pdf On Tue, Dec 21, 2010 at 10:22 AM, Jason Gillow &lt;jason.gillow(a)ovrdc.org&gt; wrote: Hello I was wondering how do you handle combining different geographic areas with each other to form a regional profile. For example, my office is a regional planning organization that serves 12 counties. I want to take the profile data from ACS 2005-09 5-year estimates for each county and form a profile of my regional, I know how to combine the estimates and do the percentages, but how do I handle the margin of error columns? Is there their a reference or guidance on this? Thank you Jason Jason Gillow Research/Planning Specialist II Ohio Valley Regional Development Commission 9329 St Rt 220 E, Suite A Waverly, OH 45690 Phone: 740-947-2853 or 800-223-7491 (In Ohio) Fax: 740-947-3468 www.ovrdc.org Email: jgillow(a)ovrdc.org _______________________________________________ ctpp-news mailing list ctpp-news(a)chrispy.net http://www.chrispy.net/mailman/listinfo/ctpp-news -- Krishnan Viswanathan 1101 High Meadow Dr Tallahassee FL 32311