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2007 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 4,462,952 0.8160 5,469,304 16 142 .087070816
A 4,481,181 0.9656 4,640,825 17 82 .063770271
A 4,482,663 1.0779 4,158,700 15 57 .041622322
A 4,385,161 1.0669 4,110,189 19 35 .027275615
D3 7,861,660 0.9829 7,998,433 20 908 .028849297
Random Totals: 25,673,617   26,377,451 87 1,224  
Catg J Exception Values: 5,748,050   4,503,017      
Catg D1 Exception Values: 3,714,480   4,025,163      
Total Test Values (4): 35,136,147   34,905,631      

Margin of Error

Margin of Error Percent: 5.0000013
Margin of Error Value: 1,745,282

Confidence Interval Values (5)

State Lower Limit: 33,160,349 (State Test Value minus Margin of Error Percent)
Local Test Value: 35,136,147 (Within Confidence Interval)
State Upper Limit: 36,650,913 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 41,268,967 (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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