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2006 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 209,852,761 1.1181 187,686,934 10 2,945 .119295113
A 210,363,425 0.9418 223,363,161 20 2,253 .029733654
A 208,397,834 0.9757 213,588,023 35 1,867 .015164836
A 209,408,926 0.9835 212,922,141 45 1,267 .007738725
D3 148,638,009 1.0451 142,223,719 13 5,414 .032181558
F1 44,727,777 0.9149 48,888,159 8 291 .032024369
F1 45,121,643 0.8745 51,597,076 9 104 .079873855
F1 46,004,836 0.9759 47,140,932 6 38 .001215865
F1 42,901,723 0.8776 48,885,281 5 11 .014227235
L1 37,328,571 0.9393 39,740,840 8 240 .019738052
L1 37,724,517 1.0101 37,347,309 6 42 .012442302
L1 39,093,123 1.0485 37,284,810 5 13 .001999048
L1 33,625,728 0.9657 34,820,056 3 4 .002031080
Random Totals: 1,313,188,873   1,325,488,441 173 14,489  
Catg D1 Exception Values: 7,236,556   10,284,870      
Total Test Values (4): 1,320,425,429   1,335,773,311      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 66,788,666

Confidence Interval Values (5)

State Lower Limit: 1,268,984,645 (State Test Value minus Margin of Error Percent)
Local Test Value: 1,320,425,429 (Within Confidence Interval)
State Upper Limit: 1,402,561,977 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 1,404,755,149 (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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