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2009 Confidence Interval Detail
071/El Paso
071-903/Fabens ISD

Category Summary

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

Stratum
Variance
A 16,347,337 1.3956 11,713,483 5 735 .162173930
A 22,558,583 1.0251 22,006,227 10 443 .031447693
A 18,506,077 1.0476 17,665,213 8 264 .005975336
A 26,032,495 0.9464 27,506,863 7 254 .002824928
D3 11,819,958 0.9898 11,941,764 10 1,176 .039745279
F1 6,514,012 0.9986 6,523,144 8 73 .017028125
F1 5,271,521 1.0473 5,033,439 7 22 .004151814
F1 6,932,855 0.9974 6,950,927 7 11 .021447737
L1 1,532,448 1.0128 1,513,081 6 20 .002204806
L1 658,122 0.9853 667,941 3 5 .000316714
L1 2,600,556 0.9872 2,634,275 4 7 .000294405
Random Totals: 118,773,964   114,156,357 75 3,010  
Catg D1 Exception Values: 11,686,656   11,209,298      
Catg F1 Exception Values: 6,208,646   5,795,428      
Catg L1 Exception Values: 24,235,351   24,077,469      
Total Test Values (4): 160,904,617   155,238,552      

Margin of Error

Margin of Error Percent: 5.0000003
Margin of Error Value: 7,761,928

Confidence Interval Values (5)

State Lower Limit: 147,476,624 (State Test Value minus Margin of Error Percent)
Local Test Value: 160,904,617 (Within Confidence Interval)
State Upper Limit: 163,000,480 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 134,297,689 (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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