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2008 Confidence Interval Detail
015/Bexar
015-912/Southwest ISD

Category Summary

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

Stratum
Variance
A 196,789,447 0.9835 200,090,948 44 3,569 .037750800
A 199,611,957 0.9536 209,324,619 53 2,625 .018831269
A 235,235,535 0.9817 239,620,592 61 2,355 .030925571
A 266,982,333 1.0211 261,465,413 60 1,677 .006785482
D3 127,255,940 1.0398 122,385,016 15 2,372 .001851529
F1 32,260,061 0.9541 33,812,033 7 200 .044317506
F1 33,445,858 0.9343 35,797,772 6 61 .023583424
F1 43,129,511 1.0238 42,126,891 6 36 .006542376
F1 31,976,060 0.9543 33,507,346 5 13 .014962796
L1 19,148,555 1.1008 17,395,126 7 139 .052944793
L1 22,296,724 1.0512 21,210,734 5 30 .002568505
L1 21,511,780 1.0350 20,784,329 2 8 .002355530
Random Totals: 1,229,643,761   1,237,520,819 271 13,085  
Catg D1 Exception Values: 4,565,874   5,179,664      
Catg L1 Exception Values: 57,112,460   57,506,309      
Total Test Values (4): 1,291,322,095   1,300,206,792      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 65,010,340

Confidence Interval Values (5)

State Lower Limit: 1,235,196,452 (State Test Value minus Margin of Error Percent)
Local Test Value: 1,291,322,095 (Within Confidence Interval)
State Upper Limit: 1,365,217,132 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 1,555,224,971 (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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