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2006 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 3,752,986 0.9097 4,125,521 15 144 .039202368
A 3,767,646 0.9502 3,965,108 15 83 .027256914
A 3,779,774 0.9880 3,825,682 17 57 .013876181
A 3,705,080 0.9514 3,894,345 18 34 .023109422
D3 6,550,860 0.9353 7,004,020 23 921 .025870266
Random Totals: 21,556,346   22,814,676 88 1,239  
Catg J Exception Values: 7,348,620   7,238,846      
Catg D1 Exception Values: 3,671,380   4,091,104      
Total Test Values (4): 32,576,346   34,144,626      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 1,707,231

Confidence Interval Values (5)

State Lower Limit: 32,437,395 (State Test Value minus Margin of Error Percent)
Local Test Value: 32,576,346 (Within Confidence Interval)
State Upper Limit: 35,851,857 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 37,343,385 (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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