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2008 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 7,710,400 0.8472 9,101,039 18 1,309 .006254551
G1 37,624,340 1.0045 37,455,789 5 18 .000151875
G1 48,410,408 1.0479 46,197,546 3 4 .000078681
Random Totals: 93,745,148   92,754,374 26 1,331  
Catg J Exception Values: 10,976,406   10,897,191      
Catg D1 Exception Values: 16,107,910   15,875,288      
Catg G1 Exception Values: 276,590,170   273,959,915      
Total Test Values (4): 397,419,634   393,486,768      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 19,674,338

Confidence Interval Values (5)

State Lower Limit: 373,812,430 (State Test Value minus Margin of Error Percent)
Local Test Value: 397,419,634 (Within Confidence Interval)
State Upper Limit: 413,161,106 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 463,157,955 (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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