taxes Property Tax

School and Appraisal Districts Property Value Study 2012 Report

2012 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 4,564,340 0.9544 4,782,418 9 146 .044374492
A 4,408,280 0.9285 4,747,744 9 80 .031676613
A 4,358,210 0.9745 4,472,252 9 57 .007930786
A 4,204,350 0.9650 4,356,839 8 32 .014644895
D3 8,877,098 1.0301 8,617,705 15 807 .007802342
F1 2,225,200 0.9855 2,257,940 8 35 .008984259
G1 375,670 0.9922 378,623 4 7 .003731083
Random Totals: 29,013,148   29,613,521 62 1,164  
Catg J Exception Values: 4,670,030   4,205,121      
Catg D1 Exception Values: 4,929,099   4,236,519      
Catg F1 Exception Values: 996,090   962,447      
Catg G1 Exception Values: 1,502,170   1,527,360      
Total Test Values (4): 41,110,537   40,544,968      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 2,027,248

Confidence Interval Values (5)

State Lower Limit: 38,517,720 (State Test Value minus Margin of Error Percent)
Local Test Value: 41,110,537 (Within Confidence Interval)
State Upper Limit: 42,572,216 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 45,729,578 (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