Realizing the Potential of the American Community Survey Challenges, Tradeoffs, and Opportunities (2015) / Chapter Skim
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Appendix A: Usability Analysis: Tract-Level 2008-2012 ACS Data
Appendix A: Usability Analysis: Tract-Level 2008-2012 ACS Data
Pages 121-128
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From page 121... ...
persons living in poverty, (2) occupied housing units that are renter occupied, (3)
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From page 122... ...
TABLE A-1 Usability Analysis: Tract-Level 2008-2012 ACS Data 122 (in percentage) Percentage of Percentage of Households Percentage of Percentage of Occupied Housing Receiving SNAP Percentage of Population Aged 25+ Persons Living in Units That Are Benefits in Persons Who Are with a Graduate or Characteristics Povertya Renter Occupiedb Past 12 Monthsc Foreign Born Professional Degreed National Estimate 14.9 34.5 11.4 12.9 10.6 National Margin of Error ±0.1 ±0.2 ±0.1 ±0.1 ±0.1 All Tractse Tract range 0-100 0-100 0-100 0-100 0-100 Tract mean 16.0 35.2 12.5 12.2 10.3 Tract median 12.6 29.8 9.2 6.9 7.2 Tract median CV 28.3 14.7 29.5 29.7 26.0 Tract median MoE 5.8 6.7 4.6 3.4 3.2 CV ≤ 30% 56 88 51 50 61 CV > 30 and ≤ 50% 35 9 29 29 27 CV > 50% 9 2 20 21 12 Confidence interval ≥ 10 59 80 45 30 17 percentage points MoE > estimate 4 1 16 15 8 Confidence interval 4 1 16 15 8 lower bound < 0 Confidence interval 0.17 (125 1.4 (1034 0.1 (89 0.05 (37 0.1 (64 upper bound > 100 tracts)
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From page 123... ...
Percentage of Percentage of Households Percentage of Percentage of Occupied Housing Receiving SNAP Percentage of Population Aged 25+ Excluding Tracts Persons Living in Units That Are Benefits in Persons Who Are with a Graduate or Where CV = 0 Povertyf Renter Occupiedg Past 12 Monthsh Foreign Borni Professional Degreej Tract range 0.02-96.3 0.14-99.8 0.04-94.2 0.02-95.0 0.02-97.4 Tract mean 16.0 34.9 12.9 12.5 10.4 Tract median 12.6 29.7 9.7 7.2 7.3 Tract median CV 28.4 14.8 30.3 30.4 26.2 Tract median MoE 5.8 6.7 4.8 3.5 3.2 CV ≤ 30% 55 88 49 49 60 CV > 30 and ≤ 50% 35 9 30 30 27 CV > 50% 9 2 20 21 13 Confidence interval ≥ 10 59 80 46 31 17 percentage points MoE > estimate 4 1 13 13 7 Confidence interval 4 1 13 13 7 lower bound < 0 Confidence interval 0.11 (78 0.8 (541 0.01 (10 0.02 (11 .03 (19 upper bound > 100 tracts) tracts)
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From page 124... ...
TABLE A-1 Continued 124 Percentage of Percentage of Households Percentage of Percentage of Occupied Housing Receiving SNAP Percentage of Population Aged 25+ Persons Living in Units That Are Benefits in Persons Who Are with a Graduate or Characteristics Povertya Renter Occupiedb Past 12 Monthsc Foreign Born Professional Degreed Confidence Interval Width ≥ 10 Percentage Points by CV Category, Excluding Tracts Where CV = 0 CV ≤ 30% 73 84 69 48 24 CV > 30 and ≤ 50% 46 58 33 19 9 CV > 50% 30 32 11 8 6 Median CVs by Tract Total Population Size All Tracts < 1,000 31.3 18.7 27.2 43.6 37.6 1,000-2,999 29.0 16.0 29.6 38.6 31.4 3,000-4,999 28.1 14.3 29.3 29.6 25.9 5,000-6,999 28.2 14.1 29.8 25.2 23.5 7,000+ 27.8 14.4 29.5 20.7 20.8 Excluding Tracts Where CV = 0 < 1,000 37.2 24.6 40.7 54.7 49.4
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From page 125... ...
1,000-2,999 29.1 16.2 30.6 40.2 31.9 3,000-4,999 28.1 14.4 30.0 30.1 26.0 5,000-6,999 28.2 14.1 30.4 25.3 23.6 7,000+ 27.8 14.4 29.9 20.8 20.8 Median CV by Tract Number of Housing Units All Tracts ≤ 400 32.6 12.0 23.7 29.8 42.9 401-1,000 31.6 18.0 31.8 34.1 35.5 1,001-2,000 28.4 14.9 29.2 30.9 27.4 2,001-4,000 27.4 13.6 29.1 28.1 22.7 4,001-6,000 27.2 13.4 31.8 20.8 17.0 6,001+ 26.4 13.7 40.4 16.0 14.2 Excluding Tracts Where CV = 0 ≤ 400 48.6 28.9 63.1 35.6 58.5 401-1,000 31.7 18.3 33.2 36.2 36.5 1,001-2,000 28.4 15.0 29.9 31.5 27.5 2,001-4,000 27.4 13.6 29.6 28.3 22.7 4,001-6,000 27.2 13.4 32.4 20.8 17.0 6,001+ 26.4 13.7 40.7 16.0 14.2 125 Continued
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From page 126... ...
TABLE A-1 Continued 126 Percentage of Percentage of Households Percentage of Percentage of Occupied Housing Receiving SNAP Percentage of Population Aged 25+ Persons Living in Units That Are Benefits in Persons Who Are with a Graduate or Characteristics Povertya Renter Occupiedb Past 12 Monthsc Foreign Born Professional Degreed Confidence Interval ≥ 10 Percentage Points by Tract Population Size, Excluding Tracts Where CV = 0 < 1,000 83 93 79 58 61 1,000-2,999 68 86 60 34 28 3,000-4,999 59 80 46 32 16 5,000-6,999 54 77 38 28 11 7,000+ 46 67 29 23 6 Confidence Interval ≥ 10 Percentage Points by Tract Number of Housing Units, Excluding Tracts Where CV = 0 ≤ 400 88 95 85 45 56 401-1,000 72 88 66 43 30 1,001-2,000 61 81 49 32 17 2,001-4,000 53 77 36 25 13
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From page 127... ...
4,001-6,000 38 63 16 17 14 6,001+ 25 54 10 15 16 MoE > Estimate by Tract Population Size, Excluding Tracts Where CV = 0 < 1,000 25 14 34 43 39 1,000-2,999 6 2 14 22 13 3,000-4,999 4 1 12 11 6 5,000-6,999 3 0.5 12 7 3 7,000+ 2 0.4 10 3 2 MoE > Estimate by Tract Number of Housing Units, Excluding Tracts Where CV = 0 ≤ 400 36 20 52 22 47 401-1,000 9 3 17 22 19 1,001-2,000 4 1 13 14 7 2,001-4,000 2 0.3 11 8 2 4,001-6,000 1 0 12 1 0.2 127 Continued
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From page 128... ...
When the percentage renter occupied is zero, the CV cannot be calculated and is set to zero. hThere are 2,754 tracts excluded because either the standard error of the percentage with SNAP benefits equals zero or the percentage with SNAP benefits equals zero.
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