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2008 Confidence Interval Detail
020/Brazoria
020-910/Damon ISD

Category Summary

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

Stratum
Variance
A 4,463,240 0.8661 5,153,262 16 143 .032548829
A 4,739,020 0.9893 4,790,276 16 88 .035566090
A 4,493,560 0.9874 4,550,901 17 56 .013083742
A 4,512,330 1.0090 4,472,081 18 32 .025458784
D3 8,148,760 0.9751 8,356,845 22 929 .033313855
Random Totals: 26,356,910   27,323,365 89 1,248  
Catg J Exception Values: 6,004,268   5,855,105      
Catg D1 Exception Values: 3,701,113   4,160,211      
Total Test Values (4): 36,062,291   37,338,681      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 1,866,934

Confidence Interval Values (5)

State Lower Limit: 35,471,747 (State Test Value minus Margin of Error Percent)
Local Test Value: 36,062,291 (Within Confidence Interval)
State Upper Limit: 39,205,615 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 40,936,386 (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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