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2010 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 24,159,570 0.9099 26,551,896 16 317 .010988197
A 24,483,420 0.9670 25,318,945 15 222 .014139801
A 24,512,060 1.0125 24,209,442 14 163 .005001518
A 22,970,720 0.9517 24,136,514 11 94 .006346723
D3 32,399,391 0.9897 32,736,578 20 1,103 .014892711
F1 2,554,490 1.1858 2,154,233 6 19 .005136374
F1 1,428,820 0.9759 1,464,105 4 5 .051758063
F1 2,883,060 1.0546 2,733,795 3 5 .026799808
Random Totals: 135,391,531   139,305,508 89 1,928  
Catg J Exception Values: 7,124,826   7,608,350      
Catg D1 Exception Values: 3,769,112   3,814,802      
Catg F1 Exception Values: 8,412,350   6,760,704      
Total Test Values (4): 154,697,819   157,489,364      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 7,874,468

Confidence Interval Values (5)

State Lower Limit: 149,614,896 (State Test Value minus Margin of Error Percent)
Local Test Value: 154,697,819 (Within Confidence Interval)
State Upper Limit: 165,363,832 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 186,292,525 (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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