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2006 Confidence Interval Detail
143/Lavaca
143-901/Hallettsville ISD

Category Summary

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

Stratum
Variance
A 20,956,586 0.9250 22,655,769 8 531 .068590834
A 20,862,297 0.9860 21,158,516 7 293 .012388093
A 20,941,753 1.0075 20,785,859 7 206 .006574096
A 20,854,338 1.0225 20,395,441 7 130 .002771284
D3 135,799,895 1.0194 133,215,514 27 9,188 .053493146
G1 94,668,390 1.0252 92,341,387 7 100 .010554033
G1 93,520,469 0.9950 93,990,421 6 35 .009701417
G1 95,660,500 0.9988 95,775,431 5 13 .006621560
G1 90,378,830 0.9646 93,695,656 2 3 .000017989
Random Totals: 593,643,058   594,013,994 76 10,499  
Catg D1 Exception Values: 27,205,560   26,187,354      
Total Test Values (4): 620,848,618   620,201,348      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 31,010,067

Confidence Interval Values (5)

State Lower Limit: 589,191,281 (State Test Value minus Margin of Error Percent)
Local Test Value: 620,848,618 (Within Confidence Interval)
State Upper Limit: 651,211,415 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 718,801,978 (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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