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2010 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 4,324,070 0.9438 4,581,553 16 137 .034599744
A 4,835,350 0.9682 4,994,164 17 87 .013895835
A 4,584,150 0.9763 4,695,432 14 56 .018207148
A 4,238,250 0.9914 4,275,015 12 29 .014558625
D3 8,344,250 1.0256 8,135,969 20 944 .043360006
Random Totals: 26,326,070   26,682,133 79 1,253  
Catg J Exception Values: 6,040,988   4,686,049      
Catg D1 Exception Values: 4,368,982   4,414,305      
Total Test Values (4): 36,736,040   35,782,487      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 1,789,124

Confidence Interval Values (5)

State Lower Limit: 33,993,363 (State Test Value minus Margin of Error Percent)
Local Test Value: 36,736,040 (Within Confidence Interval)
State Upper Limit: 37,571,611 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 43,117,397 (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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