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2008 Confidence Interval Detail
074/Fannin
091-910/Whitewright ISD

Category Summary

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

Stratum
Variance
A 5,134,750 0.9524 5,391,380 10 66 .005947579
D3 12,044,180 1.0525 11,443,401 11 464 .087757316
Random Totals: 17,178,930   16,834,781 21 530  
Catg J Exception Values: 2,216,540   2,235,447      
Catg D1 Exception Values: 1,935,780   1,392,652      
Total Test Values (4): 21,331,250   20,462,880      

Margin of Error

Margin of Error Percent: 10.3883764
Margin of Error Value: 2,125,761

Confidence Interval Values (5)

State Lower Limit: 18,337,119 (State Test Value minus Margin of Error Percent)
Local Test Value: 21,331,250 (Within Confidence Interval)
State Upper Limit: 22,588,641 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 21,151,469 (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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