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2006 Confidence Interval Detail
022/Brewster
022-004/Terlingua CSD

Category Summary

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

Stratum
Variance
A 5,265,134 0.9617 5,474,820 7 173 .000375461
A 5,268,678 0.9467 5,565,309 6 82 .001146217
A 5,177,394 0.9845 5,258,907 6 46 .001217619
A 5,214,501 1.0912 4,778,685 7 15 .029895395
D3 14,503,688 0.9742 14,887,793 22 3,268 .003614947
F1 2,380,418 0.9679 2,459,364 7 29 .000233141
F1 2,565,017 0.8306 3,088,150 4 10 .072407129
F1 2,448,865 0.9414 2,601,301 3 4 .000289033
L1 857,098 1.0813 792,655 6 19 .000513983
L1 1,638,619 1.1029 1,485,737 4 7 .002941178
Random Totals: 45,319,412   46,392,721 72 3,653  
Catg D1 Exception Values: 188,643   229,771      
Catg F1 Exception Values: 5,410,573   5,597,052      
Catg L1 Exception Values: 2,801,995   2,569,346      
Total Test Values (4): 53,720,623   54,788,890      

Margin of Error

Margin of Error Percent: 5.0000009
Margin of Error Value: 2,739,445

Confidence Interval Values (5)

State Lower Limit: 52,049,445 (State Test Value minus Margin of Error Percent)
Local Test Value: 53,720,623 (Within Confidence Interval)
State Upper Limit: 57,528,335 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 58,683,393 (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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