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2009 Confidence Interval Detail
073/Falls
073-901/Chilton ISD

Category Summary

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

Stratum
Variance
A 4,249,240 0.9147 4,645,501 16 224 .054262196
A 4,229,180 1.0999 3,845,059 16 106 .076066103
A 3,812,220 1.0083 3,780,839 15 63 .063488232
A 4,964,840 1.1114 4,467,195 16 50 .061087736
D3 13,875,100 0.9450 14,682,646 25 1,193 .224353904
Random Totals: 31,130,580   31,421,240 88 1,636  
Catg J Exception Values: 5,816,794   5,784,309      
Catg D1 Exception Values: 6,757,500   7,416,785      
Total Test Values (4): 43,704,874   44,622,334      

Margin of Error

Margin of Error Percent: 6.4767612
Margin of Error Value: 2,890,082

Confidence Interval Values (5)

State Lower Limit: 41,732,252 (State Test Value minus Margin of Error Percent)
Local Test Value: 43,704,874 (Within Confidence Interval)
State Upper Limit: 47,512,416 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 47,743,220 (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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