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2007 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 1,447,846 1.0023 1,444,524 18 42 .050912272
G1 5,689,260 0.9155 6,214,375 20 28 .089955239
Random Totals: 7,137,106   7,658,899 38 70  
Catg D1 Exception Values: 722,097   740,706      
Catg D3 Exception Values: 3,041,714   2,721,081      
Catg G1 Exception Values: 8,267,777   7,515,058      
Total Test Values (4): 19,168,694   18,635,744      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 931,787

Confidence Interval Values (5)

State Lower Limit: 17,703,957 (State Test Value minus Margin of Error Percent)
Local Test Value: 19,168,694 (Within Confidence Interval)
State Upper Limit: 19,567,531 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 19,799,519 (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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