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2009 Confidence Interval Detail
194/Red River
194-902/Avery ISD

Category Summary

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

Stratum
Variance
A 3,529,220 0.9904 3,563,429 7 131 .011443721
A 3,558,080 1.0111 3,519,019 6 71 .010683200
A 3,783,900 1.0158 3,725,044 6 50 .007974180
A 3,394,340 0.9315 3,643,951 6 29 .029906806
D3 26,340,630 1.1065 23,805,359 13 2,106 .021936708
Random Totals: 40,606,170   38,256,802 38 2,387  
Catg J Exception Values: 2,061,255   2,200,292      
Catg D1 Exception Values: 10,840,200   10,842,724      
Total Test Values (4): 53,507,625   51,299,818      

Margin of Error

Margin of Error Percent: 5.0000002
Margin of Error Value: 2,564,991

Confidence Interval Values (5)

State Lower Limit: 48,734,827 (State Test Value minus Margin of Error Percent)
Local Test Value: 53,507,625 (Within Confidence Interval)
State Upper Limit: 53,864,809 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 45,127,882 (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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