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2009 Confidence Interval Detail
065/Donley
065-902/Hedley ISD

Category Summary

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

Stratum
Variance
A 839,758 0.8060 1,041,883 6 78 .073637716
A 929,994 1.0777 862,943 6 43 .024292115
A 964,001 0.9404 1,025,097 5 21 .001813437
A 852,563 1.0326 825,647 4 12 .043474376
D3 7,643,481 0.9358 8,167,857 24 801 .086140944
Random Totals: 11,229,797   11,923,427 45 955  
Catg J Exception Values: 6,609,346   6,858,645      
Catg D1 Exception Values: 8,344,942   8,171,322      
Total Test Values (4): 26,184,085   26,953,394      

Margin of Error

Margin of Error Percent: 5.0000011
Margin of Error Value: 1,347,670

Confidence Interval Values (5)

State Lower Limit: 25,605,724 (State Test Value minus Margin of Error Percent)
Local Test Value: 26,184,085 (Within Confidence Interval)
State Upper Limit: 28,301,064 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 32,233,507 (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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