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2009 Confidence Interval Detail
071/El Paso
071-902/El Paso ISD

Category Summary

(1)
Category
(1)
Local
Value
(1)
Stratum
Ratio
(1)
State
Value
(2)
Sample
Size
(3)
Total
Parcels

Stratum
Variance
A 2,535,162,053 0.9908 2,558,702,112 97 27,954 .007780174
A 2,474,221,359 0.9982 2,478,682,988 90 18,060 .005425747
A 2,330,686,334 0.9811 2,375,584,888 98 11,797 .006670550
A 2,472,369,350 0.9855 2,508,746,169 98 6,786 .009180030
B 209,455,470 0.9833 213,012,783 12 1,945 .010689431
B 251,662,520 0.5698 441,668,164 8 886 .699077807
B 225,755,534 0.9223 244,774,514 9 72 .053842842
B 295,910,575 1.3328 222,021,740 5 26 .017653194
F1 752,894,621 0.8567 878,831,121 12 2,306 .161833050
F1 749,685,535 0.9359 801,031,665 9 677 .025437619
F1 730,034,800 0.8502 858,662,432 14 223 .108598002
F1 726,998,152 0.9502 765,100,139 11 49 .020202015
L1 350,984,173 0.9853 356,220,616 8 3,108 .000936639
L1 345,940,242 1.0022 345,180,844 8 425 .000509579
L1 374,204,950 1.0026 373,234,540 6 92 .000188797
L1 236,393,921 1.0071 234,727,357 5 8 .000220098
Random Totals: 15,062,359,589   15,656,182,072 490 74,414  
Catg D1 Exception Values: 176,285   166,701      
Total Test Values (4): 15,062,535,874   15,656,348,773      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 782,817,439

Confidence Interval Values (5)

State Lower Limit: 14,873,531,334 (State Test Value minus Margin of Error Percent)
Local Test Value: 15,062,535,874 (Within Confidence Interval)
State Upper Limit: 16,439,166,212 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 14,451,251,785 (See ISD Summary Worksheet)

Sources:
(1) See Stratified Category Worksheet Reports PTS236, PTS430
(2) Number of parcels sampled by staff
(3) Total Category Parcels from Stratification Report, Appraisal Roll, or Self-report
(4) Includes any parcels in A, B, C, D3, F1, G1, G2, or L1 marked as exception properties
(5) Unstudied categories and sub-categories were not included in the Confidence Interval Values
(6) Includes local value of unstudied property categories and sub-categories

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