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2006 Confidence Interval Detail
055/Culberson
055-901/Culberson-Allamore ISD

Category Summary

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

Stratum
Variance
A 4,751,926 0.8134 5,842,053 18 308 .067791741
A 4,761,451 0.9078 5,245,044 20 166 .068161094
A 4,724,682 0.9586 4,928,731 16 107 .040620659
A 4,745,708 0.9558 4,965,168 23 62 .054493403
C 1,774,849 1.1209 1,583,414 18 1,875 .342075549
C 1,771,107 1.4449 1,225,764 19 1,023 .067117004
C 1,784,453 1.0646 1,676,172 22 527 .015351886
C 1,737,550 1.1970 1,451,587 17 132 .064557619
D3 21,172,340 0.9195 23,025,927 22 10,182 .106355263
F1 4,731,647 0.9457 5,003,328 13 86 .050935314
F1 4,969,191 0.9451 5,257,847 8 15 .046194339
F1 4,856,493 0.9845 4,932,954 3 5 .001945457
G1 7,229,290 1.0749 6,725,547 5 14 .013326385
G1 7,268,309 0.8617 8,434,849 4 7 .003399835
G1 7,488,250 1.0433 7,177,466 3 5 .003627128
G1 5,934,339 1.0512 5,645,300 2 3 .023123163
Random Totals: 89,701,585   93,121,151 213 14,517  
Catg J Exception Values: 48,679,440   47,753,175      
Catg D1 Exception Values: 17,878,850   20,645,514      
Catg F1 Exception Values: 7,436,630   7,548,433      
Total Test Values (4): 163,696,505   169,068,273      

Margin of Error

Margin of Error Percent: 5.0000002
Margin of Error Value: 8,453,414

Confidence Interval Values (5)

State Lower Limit: 160,614,859 (State Test Value minus Margin of Error Percent)
Local Test Value: 163,696,505 (Within Confidence Interval)
State Upper Limit: 177,521,687 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 254,407,910 (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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