taxes Property Tax Assistance

2016 Confidence Interval Detail

020/Brazoria
020-907/Columbia-Brazoria ISD

Category Summary

(1)
Category		 (1)
Local
Value		 (1)
Stratum
Ratio		 (1)
State
Value		 (2)
Sample
Size		 (3)
Total
Parcels
Stratum
Variance
A 147,917,633 0.8958 165,123,502 36 1,956 .031671892
A 186,535,137 0.9779 190,750,728 43 1,468 .016177315
A 227,306,120 0.9775 232,538,230 31 1,237 .014586945
A 231,398,168 0.9448 244,917,621 35 765 .011585995
E 111,499,849 0.9330 119,506,805 16 1,488 .086628876
F1 16,437,789 1.0457 15,719,412 13 173 .048167137
F1 17,512,082 0.9841 17,795,023 10 69 .019056205
F1 12,841,890 0.9007 14,257,677 7 22 .025045391
F1 26,866,630 0.9973 26,939,366 6 21 .029052193
Random Totals: 978,315,298   1,027,548,364 197 7,199  
Catg J Exception Values: 33,030,430   34,248,290      
Catg D1 Exception Values: 8,319,570   7,593,521      
Total Test Values (4): 1,019,665,298   1,069,390,175      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 53,469,508

Confidence Interval Values (5)

State Lower Limit: 1,015,920,667 (State Test Value minus Margin of Error Percent)
Local Test Value: 1,019,665,298 (Within Confidence Interval)
State Upper Limit: 1,122,859,683 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 1,149,814,907 (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