taxes Property Tax

School and Appraisal Districts Property Value Study 2012 Report

2012 Confidence Interval Detail
020/Brazoria
020-906/Sweeny ISD

Category Summary

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

Stratum
Variance
A 65,454,693 1.0048 65,142,011 10 1,126 .021896441
A 66,639,223 0.9556 69,735,478 10 673 .032100591
A 83,263,698 0.9455 88,063,139 11 603 .005984756
A 94,807,703 0.9593 98,830,088 11 420 .010003419
D3 54,270,669 0.8965 60,536,162 15 1,824 .025052856
G1 27,840,696 1.0275 27,095,568 8 34 .074668117
Random Totals: 392,276,682   409,402,446 65 4,680  
Catg J Exception Values: 9,963,090   10,890,540      
Catg D1 Exception Values: 3,917,233   3,277,865      
Catg G1 Exception Values: 52,108,546   52,512,692      
Total Test Values (4): 458,265,551   476,083,543      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 23,804,177

Confidence Interval Values (5)

State Lower Limit: 452,279,366 (State Test Value minus Margin of Error Percent)
Local Test Value: 458,265,551 (Within Confidence Interval)
State Upper Limit: 499,887,720 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 1,328,387,893 (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