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2007 Confidence Interval Detail
005/Archer
005-904/Windthorst ISD

Category Summary

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

Stratum
Variance
A 5,278,149 0.9559 5,521,654 9 97 .004744266
A 5,197,497 0.9281 5,600,148 9 57 .014613029
A 5,330,703 0.9047 5,892,233 15 38 .016646861
A 5,092,390 0.9825 5,183,094 9 22 .002382738
D3 22,114,340 0.9692 22,817,107 30 776 .034060476
G1 4,201,560 1.0158 4,136,208 17 42 .082388629
Random Totals: 47,214,639   49,150,444 89 1,032  
Catg D1 Exception Values: 5,972,900   4,856,155      
Total Test Values (4): 53,187,539   54,006,599      

Margin of Error

Margin of Error Percent: 5.0000001
Margin of Error Value: 2,700,330

Confidence Interval Values (5)

State Lower Limit: 51,306,269 (State Test Value minus Margin of Error Percent)
Local Test Value: 53,187,539 (Within Confidence Interval)
State Upper Limit: 56,706,929 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 55,031,429 (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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