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2010 Confidence Interval Detail
008/Austin
008-901/Bellville ISD

Category Summary

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

Stratum
Variance
A 88,233,751 0.9697 90,990,771 12 1,000 .007360588
A 90,464,686 0.9995 90,509,941 13 610 .007463725
A 92,059,319 0.9930 92,708,277 12 431 .004768968
A 99,021,194 1.0068 98,352,398 11 282 .004784395
D3 442,792,034 1.0002 442,703,493 20 9,181 .006956442
F1 11,394,404 1.0843 10,508,535 9 127 .052325591
F1 11,583,609 1.0271 11,277,976 9 61 .012544821
F1 11,925,277 0.9510 12,539,723 8 34 .011570863
F1 12,285,389 0.9515 12,911,602 6 17 .086644169
Random Totals: 859,759,663   862,502,716 100 11,743  
Catg J Exception Values: 21,028,205   24,284,267      
Catg D1 Exception Values: 20,766,079   20,997,257      
Total Test Values (4): 901,553,947   907,784,240      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 45,389,212

Confidence Interval Values (5)

State Lower Limit: 862,395,028 (State Test Value minus Margin of Error Percent)
Local Test Value: 901,553,947 (Within Confidence Interval)
State Upper Limit: 953,173,452 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 968,000,229 (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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