Changes

'''Census 2010''' is now in preparation, with thousands of enumerators being hired. The cost is estimated to be $15 billion, the most expensive ever, and experts have long said the Census Bureau must do more to reduce a persistent undercount among minorities, as well as to modernize what is basically a paper mailing operation that has been in place for decades.

'''Census 2010''' in the United States is now in preparation, with tens of thousands of enumerators and staffers being hired. The final cost is estimated to be $15 billion, the most expensive ever, and experts have long said the Census Bureau must do more to reduce a persistent undercount among minorities, as well as to modernize what is basically a paper mailing operation that has been in place for decades.

President Obama has nominated [[Robert M. Groves]], a foremost statistician and an expert on non-response, as the Census director.  The basic design work for the Census is already in place.

President Obama has nominated [[Robert M. Groves]], a foremost statistician and an expert on non-response, as the Census director.  The basic design work for the Census is already in place.

==Sampling and Hot-Deck Imputation==

==Sampling and Hot-Deck Imputation==

When he served in the census bureaus from 1990 to 1992, Robert M. Groves favored sampling, rather than Actual Enumeration.  In 1999, Doc v. United States House of Representatives, 525 U.S. 316 (1999) ruled that sampling cannot be used in the count used for redistricting the House, but can be used in all other Census reports.

When he served in the census bureaus from 1990 to 1992, Robert M. Groves favored sampling, rather than Actual Enumeration.  In 1999, Doc v. United States House of Representatives, 525 U.S. 316 (1999) ruled that sampling cannot be used in the count used for redistricting the House, but can be used in all other Census reports. Statisticians now estimate that the 1990 Census missed about 4.7 million people who should have been counted.  They estimate that the 2000 Census OVERcounted by about two million, as people who moved around were counted twice.<ref> See Freedman and Wachter (2004) pp. 6-8</ref>

 

==Further reading==

==Further reading==

* Cork, Daniel L. et al. ''Reengineering the 2010 census: risks and challenges'' (National Research Council Committee on National Statistics, 2004) [http://www.worldcat.org/oclc/55029117/editions?editionsView=true&referer=di online edition]

* Cork, Daniel L. et al. eds. ''Reengineering the 2010 census: risks and challenges'' (National Research Council Committee on National Statistics, 2004) [http://www.worldcat.org/wcpa/oclc/55029117?page=frame&url=http%3A%2F%2Fwww.nap.edu%2Fbooks%2F0309091896%2Fhtml%2F%26checksum%3D2c6f6066096f5875f7164ad012011f62&title=&linktype=digitalObject&detail= online edition]

* Freedman, David A. and Kenneth W. Wachter. "Methods for Census 2000 and Statistical Adjustments" (2004) [http://128.32.135.2/tech-reports/652.pdf online edition]