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2008 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 22,006,990 0.9592 22,943,067 5 495 .018797492
A 22,700,520 0.9264 24,504,016 8 294 .033425600
A 26,509,350 0.9257 28,637,085 7 238 .003965644
A 29,053,310 1.0193 28,503,198 7 157 .002693802
D3 167,492,520 1.0498 159,547,076 20 9,091 .046896248
G1 103,356,994 0.9299 111,148,504 11 106 .014869122
G1 105,445,407 0.9818 107,400,089 6 37 .001045232
G1 100,976,311 0.9860 102,410,052 5 17 .000296243
G1 103,255,323 0.8566 120,540,886 4 9 .081410889
Random Totals: 680,796,725   705,633,973 73 10,444  
Catg D1 Exception Values: 24,487,650   24,449,638      
Total Test Values (4): 705,284,375   730,083,611      

Margin of Error

Margin of Error Percent: 5.0000001
Margin of Error Value: 36,504,181

Confidence Interval Values (5)

State Lower Limit: 693,579,430 (State Test Value minus Margin of Error Percent)
Local Test Value: 705,284,375 (Within Confidence Interval)
State Upper Limit: 766,587,792 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 787,829,175 (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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