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2006 Confidence Interval Detail
205/San Patricio
205-904/Mathis ISD

Category Summary

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

Stratum
Variance
A 31,575,770 0.9010 35,045,250 17 1,323 .076938066
A 31,578,092 0.9847 32,068,744 17 726 .039754177
A 31,592,740 0.9127 34,614,594 16 463 .055130610
A 31,553,010 1.0134 31,135,790 15 243 .027774976
D3 19,386,265 0.9857 19,667,510 20 1,349 .044298738
F1 3,734,083 0.9338 3,998,804 7 89 .011384771
F1 3,821,258 0.9562 3,996,296 7 37 .030328692
F1 3,722,417 0.8887 4,188,609 5 17 .042012968
F1 3,637,721 0.9735 3,736,745 3 6 .003539417
Random Totals: 160,601,356   168,452,342 107 4,253  
Catg J Exception Values: 13,662,994   13,613,817      
Catg D1 Exception Values: 21,726,314   25,239,291      
Total Test Values (4): 195,990,664   207,305,450      

Margin of Error

Margin of Error Percent: 5.0000002
Margin of Error Value: 10,365,273

Confidence Interval Values (5)

Local Test Value: 195,990,664 (Outside Confidence Interval)
State Lower Limit: 196,940,177 (State Test Value minus Margin of Error Percent)
State Upper Limit: 217,670,723 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 195,245,027 (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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