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2009 Confidence Interval Detail
223/Terry
223-904/Wellman-Union CISD

Category Summary

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

Stratum
Variance
D3 7,369,320 0.9696 7,600,371 13 1,104 .025157376
G1 44,970,891 0.8883 50,625,792 7 34 .012629938
Random Totals: 52,340,211   58,226,163 20 1,138  
Catg J Exception Values: 2,452,840   1,964,052      
Catg D1 Exception Values: 45,492,880   50,419,243      
Catg G1 Exception Values: 15,585,956   15,750,308      
Total Test Values (4): 115,871,887   126,359,766      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 6,317,988

Confidence Interval Values (5)

Local Test Value: 115,871,887 (Outside Confidence Interval)
State Lower Limit: 120,041,778 (State Test Value minus Margin of Error Percent)
State Upper Limit: 132,677,754 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 164,024,731 (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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