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2007 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 202,515,814 0.9252 218,888,688 59 3,196 .033815953
A 202,616,787 0.9709 208,689,656 41 2,452 .034531943
A 202,417,212 0.9838 205,750,368 60 1,964 .015660340
A 202,362,136 0.9779 206,935,409 54 1,221 .011588848
D3 118,368,333 1.0157 116,538,676 12 2,366 .003709966
F1 32,035,960 0.8947 35,806,371 11 190 .040592323
F1 32,375,325 0.9664 33,500,957 10 51 .027530757
F1 63,034,090 0.9405 67,021,893 10 21 .068728054
L1 16,114,754 1.0544 15,283,340 11 133 .021526386
L1 16,842,860 1.1399 14,775,735 7 17 .062126885
L1 19,398,603 0.9965 19,466,737 2 4 .005861788
Random Totals: 1,108,081,874   1,142,657,830 277 11,615  
Catg D1 Exception Values: 4,317,119   5,686,872      
Catg L1 Exception Values: 10,040,800   8,468,515      
Total Test Values (4): 1,122,439,793   1,156,813,217      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 57,840,661

Confidence Interval Values (5)

State Lower Limit: 1,098,972,556 (State Test Value minus Margin of Error Percent)
Local Test Value: 1,122,439,793 (Within Confidence Interval)
State Upper Limit: 1,214,653,878 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 1,400,604,118 (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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