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2012 Confidence Interval Detail
003/Angelina
003-906/Zavalla ISD

Category Summary

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

Stratum
Variance
A 17,193,990 1.0188 16,876,708 10 618 .021083338
A 16,549,430 1.0290 16,083,022 10 295 .022630737
A 16,822,590 1.0469 16,068,956 11 198 .012892630
A 18,662,890 0.8961 20,826,794 9 109 .016548281
C 1,748,200 1.0269 1,702,405 14 725 .062782796
C 1,778,986 1.0255 1,734,750 10 333 .007867888
C 1,705,840 1.0162 1,678,646 10 140 .005710164
C 1,604,684 1.0085 1,591,159 8 45 .004491561
D3 18,799,180 0.9538 19,709,771 15 1,424 .017769351
Random Totals: 94,865,790   96,272,211 97 3,887  
Catg J Exception Values: 1,643,980   1,681,388      
Catg D1 Exception Values: 7,548,111   8,032,203      
Total Test Values (4): 104,057,881   105,985,802      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 5,299,290

Confidence Interval Values (5)

State Lower Limit: 100,686,512 (State Test Value minus Margin of Error Percent)
Local Test Value: 104,057,881 (Within Confidence Interval)
State Upper Limit: 111,285,092 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 91,746,898 (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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