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2007 Confidence Interval Detail
196/Refugio
196-901/Austwell-Tivoli ISD

Category Summary

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

Stratum
Variance
D3 6,686,960 0.3105 21,536,103 14 1,347 .248535093
G1 42,350,698 1.0118 41,856,788 7 20 .004582289
G1 41,267,979 1.0772 38,310,415 2 3 .000000024
Random Totals: 90,305,637   101,703,306 23 1,370  
Catg J Exception Values: 10,323,584   10,312,519      
Catg D1 Exception Values: 17,462,540   17,133,270      
Catg G1 Exception Values: 226,930,750   224,284,347      
Total Test Values (4): 345,022,511   353,433,442      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 17,671,672

Confidence Interval Values (5)

State Lower Limit: 335,761,770 (State Test Value minus Margin of Error Percent)
Local Test Value: 345,022,511 (Within Confidence Interval)
State Upper Limit: 371,105,114 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 404,583,951 (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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