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Activity Number:
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330
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Type:
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Topic Contributed
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Date/Time:
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Tuesday, July 31, 2007 : 2:00 PM to 3:50 PM
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Sponsor:
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Section on Survey Research Methods
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| Abstract - #308517 |
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Title:
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A Strategy for Estimating the Number of Minority-Operated Farms
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Author(s):
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Matthew J. Fetter*+ and Phillip S. Kott
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Companies:
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USDA National Agricultural Statistics Service and USDA National Agricultural Statistics Service
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Address:
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1400 Independence Ave SW, Washington, DC, 20250,
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Keywords:
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area segment ; nearly unbiased ; variance estimation ; weight adjustment ; selection probability ; supplemental sample
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Abstract:
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The National Agricultural Statistics Service (NASS) uses a national stratified sample of area segments to measure production agriculture. It has supplemented this sample to estimate the total number of 2007 farms in specific categories, in particular the number farms operated by minorities. To meet a national accuracy criterion for the number of Asian-operated farms yet prevent unreasonably large sample sizes in some strata in California, NASS has designated specific segments for potential supplemental sampling based on Decennial Census information. We will show how this was accomplished without sacrificing the randomization consistency of the Asian estimators or increasing the anticipated mean squared errors of other estimators.
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