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2009 Confidence Interval Detail
143/Lavaca
062-903/Yoakum ISD

Category Summary

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

Stratum
Variance
A 19,570,405 1.0496 18,645,584 13 540 .140084410
A 19,622,337 0.9942 19,736,811 12 285 .005236860
A 19,677,152 0.9910 19,855,855 12 174 .009586127
A 20,014,779 1.0354 19,330,480 12 111 .010307600
D3 29,238,471 0.9851 29,680,714 10 1,290 .003025340
F1 3,207,667 0.9461 3,390,410 6 67 .048565389
F1 4,229,077 0.9733 4,345,091 5 24 .021519078
F1 1,743,164 0.9685 1,799,860 3 3 .010278625
G1 5,030,579 0.9090 5,534,190 5 12 .234290751
G1 6,353,902 0.9639 6,591,868 3 6 .012826245
Random Totals: 128,687,533   128,910,863 81 2,512  
Catg D1 Exception Values: 2,611,570   2,651,412      
Catg F1 Exception Values: 3,980,886   4,276,376      
Catg G1 Exception Values: 14,187,693   14,010,156      
Total Test Values (4): 149,467,682   149,848,807      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 7,492,440

Confidence Interval Values (5)

State Lower Limit: 142,356,367 (State Test Value minus Margin of Error Percent)
Local Test Value: 149,467,682 (Within Confidence Interval)
State Upper Limit: 157,341,247 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 170,594,145 (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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