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2009 Confidence Interval Detail
071/El Paso
071-907/Canutillo ISD

Category Summary

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

Stratum
Variance
A 162,172,905 0.9332 173,781,510 10 2,313 .009322410
A 179,919,638 0.9960 180,642,207 28 1,122 .002932709
A 170,429,195 0.9588 177,752,602 27 746 .002596549
A 167,765,696 0.9803 171,137,097 25 513 .001950752
C 43,763,752 1.0117 43,257,638 10 689 .008209305
C 19,756,498 0.9872 20,012,660 9 51 .007733187
C 23,131,380 1.0506 22,017,304 6 33 .007409216
C 20,719,024 1.0217 20,278,970 6 11 .010873391
F1 33,537,175 1.0682 31,395,970 9 145 .012371721
F1 32,038,337 1.1069 28,944,202 9 35 .042957997
F1 49,995,408 0.9575 52,214,525 9 14 .018785256
L1 23,354,924 1.0083 23,162,674 8 199 .000552699
L1 22,331,318 1.0075 22,165,080 6 52 .000348704
L1 20,934,319 1.0180 20,564,164 5 19 .006110190
Random Totals: 969,849,569   987,326,603 167 5,942  
Catg D1 Exception Values: 1,838,457   1,743,801      
Catg F1 Exception Values: 79,394,567   75,109,102      
Catg L1 Exception Values: 20,052,622   20,008,420      
Total Test Values (4): 1,071,135,215   1,084,187,926      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 54,209,396

Confidence Interval Values (5)

State Lower Limit: 1,029,978,530 (State Test Value minus Margin of Error Percent)
Local Test Value: 1,071,135,215 (Within Confidence Interval)
State Upper Limit: 1,138,397,322 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 1,341,101,913 (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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