taxes Property Tax Assistance

2023 Confidence Interval Detail

Brazoria County
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 249,673,521 1.0061 248,159,747 27 1,774 0.012227938
A 331,621,464 1.0457 317,128,683 44 1,531 0.012150224
A 454,058,155 1.0564 429,816,504 55 1,530 0.009264646
A 774,472,357 1.0617 729,464,403 82 1,688 0.025533253
E 273,399,544 0.9933 275,243,677 10 1,418 0.117845856
F1 25,438,788 1.1025 23,073,731 13 156 0.057203854
F1 49,455,383 1.0016 49,376,381 11 115 0.010635732
F1 33,381,141 1.0278 32,478,246 9 32 0.003918404
F1 72,121,129 0.9380 76,888,197 6 28 0.008143417
Random Totals: 2,263,621,482 2,181,629,569 257 8,272
CATG D1 EXCEPTION VALUES: 7,025,009 6,759,544
CATG J EXCEPTION VALUES: 159,996,402 163,922,976
Total Test Values 2,430,642,893 2,352,312,089

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 117,615,604

Confidence Interval Values(5)

Local Test Value: 2,430,642,893 WITHIN CONFIDENCE INTERVAL
State Lower Limit: 2,234,696,485 (State Test Value minus Margin of Error Percent)
State Upper Limit: 2,469,927,693 (State Test Value plus Margin of Error Percent)

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, D2, E, F1, G1, G2, or L1 marked as exception properties
(5) Unstudied categories and sub-categories were not included in the Confidence Interval Values