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2008 Confidence Interval Detail
015/Bexar
015-911/East Central ISD

Category Summary

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

Stratum
Variance
A 237,565,203 1.0359 229,332,178 33 3,324 .045149636
A 271,856,427 1.0274 264,606,217 49 2,668 .019057293
A 283,050,170 1.0372 272,898,351 54 2,105 .015227574
A 305,142,760 0.9733 313,513,572 46 1,518 .003727569
D3 177,558,067 0.9523 186,451,819 18 5,478 .008837019
F1 54,139,839 0.9212 58,770,993 7 325 .024444850
F1 54,282,487 0.9835 55,193,174 10 110 .049202801
F1 63,645,426 0.9740 65,344,380 6 41 .080569527
F1 61,565,822 0.9542 64,520,878 4 11 .010747269
L1 46,566,439 0.9928 46,904,149 7 241 .036507932
L1 59,579,495 1.0078 59,118,372 6 54 .000778090
L1 33,999,400 1.0375 32,770,506 5 12 .005189932
L1 48,613,230 0.9012 53,942,776 3 7 .056497107
Random Totals: 1,697,564,765   1,703,367,365 248 15,894  
Catg D1 Exception Values: 7,259,983   8,512,458      
Total Test Values (4): 1,704,824,748   1,711,879,823      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 85,593,991

Confidence Interval Values (5)

State Lower Limit: 1,626,285,832 (State Test Value minus Margin of Error Percent)
Local Test Value: 1,704,824,748 (Within Confidence Interval)
State Upper Limit: 1,797,473,814 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 1,776,556,773 (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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