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2009 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 24,697,486 1.0055 24,562,393 11 520 .035484882
A 25,819,968 1.0221 25,261,685 9 310 .010982765
A 24,416,267 1.0821 22,563,781 7 203 .018712001
A 26,415,541 0.9810 26,927,157 7 134 .006467008
D3 172,280,916 0.9996 172,349,856 23 9,222 .045202588
G1 77,490,131 1.0345 74,905,878 15 100 .017880845
G1 78,626,551 1.0241 76,776,244 15 40 .025909493
G1 78,900,672 1.0141 77,803,641 15 21 .003121038
G1 74,466,833 0.9287 80,183,949 10 12 .020217904
Random Totals: 583,114,365   581,334,584 112 10,562  
Catg J Exception Values: 6,092,660   5,907,202      
Catg D1 Exception Values: 24,048,883   24,743,168      
Total Test Values (4): 613,255,908   611,984,954      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 30,599,248

Confidence Interval Values (5)

State Lower Limit: 581,385,706 (State Test Value minus Margin of Error Percent)
Local Test Value: 613,255,908 (Within Confidence Interval)
State Upper Limit: 642,584,202 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 715,542,740 (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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