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2008 Confidence Interval Detail
020/Brazoria
020-904/Danbury ISD

Category Summary

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

Stratum
Variance
A 21,841,275 0.9600 22,751,328 12 304 .043037851
A 23,270,700 1.0915 21,319,927 13 225 .016589239
A 22,706,150 1.0435 21,759,607 12 159 .023642471
A 28,069,510 0.9686 28,979,465 12 122 .011159231
D3 30,678,291 0.9428 32,539,553 22 1,055 .100706424
F1 1,826,290 0.8329 2,192,688 5 15 .135915853
F1 3,025,130 0.9236 3,275,368 6 9 .026677331
F1 3,170,250 0.8599 3,686,766 3 3 .000138266
G1 6,233,700 0.7611 8,190,382 9 24 .987656426
L1 1,221,190 1.2726 959,602 5 17 .035594249
L1 1,358,160 1.0030 1,354,098 3 6 .000108933
Random Totals: 143,400,646   147,008,784 102 1,939  
Catg J Exception Values: 7,693,024   7,991,203      
Catg D1 Exception Values: 3,553,421   3,892,328      
Catg F1 Exception Values: 4,105,160   4,136,467      
Catg G1 Exception Values: 2,960,320   2,768,049      
Catg L1 Exception Values: 7,744,630   9,319,676      
Total Test Values (4): 169,457,201   175,116,507      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 8,755,825

Confidence Interval Values (5)

State Lower Limit: 166,360,682 (State Test Value minus Margin of Error Percent)
Local Test Value: 169,457,201 (Within Confidence Interval)
State Upper Limit: 183,872,332 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 170,597,210 (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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