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2008 Confidence Interval Detail
049/Cooke
049-908/Walnut Bend ISD

Category Summary

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

Stratum
Variance
A 1,396,590 0.9187 1,520,181 10 40 .013740603
D3 3,158,788 1.0893 2,899,833 29 163 .044723502
G1 7,001,930 0.9958 7,031,462 15 30 .095619842
Random Totals: 11,557,308   11,451,476 54 233  
Catg D1 Exception Values: 761,270   801,557      
Catg G1 Exception Values: 25,770,380   25,138,309      
Total Test Values (4): 38,088,958   37,391,342      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 1,869,567

Confidence Interval Values (5)

State Lower Limit: 35,521,775 (State Test Value minus Margin of Error Percent)
Local Test Value: 38,088,958 (Within Confidence Interval)
State Upper Limit: 39,260,909 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 39,140,523 (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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