taxes Property Tax Assistance

2022 Confidence Interval Detail

Brazoria County
020-901/Alvin ISD

Category Summary

(1)
Category 		(1)
Local
Value 		(1)
Stratum
Ratio 		(1)
State
Value 		(2)
Sample
Size 		(3)
Total
Parcels
Stratum
Variance
A 1,413,202,766 0.8991 1,571,797,093 151 7,796 0.017996085
A 1,872,883,653 0.9436 1,984,827,949 152 7,237 0.011620404
A 2,555,867,461 0.9447 2,705,480,535 152 7,942 0.008731788
A 4,766,328,085 0.9492 5,021,416,019 145 10,502 0.010813661
B 781,078,812 1.0037 778,199,474 9 32 0.030408573
E 582,369,556 0.8625 675,211,079 25 2,861 0.062157034
F1 364,105,179 0.7858 463,356,044 17 629 0.089125429
F1 442,394,651 0.8785 503,579,569 11 224 0.074357979
F1 436,850,415 0.6206 703,916,234 15 76 0.406046276
F1 482,922,578 0.7514 642,697,069 6 20 0.031884105
L1 107,994,110 0.8932 120,906,975 10 968 0.031398939
L1 116,641,500 0.9020 129,314,302 10 160 0.023902435
L1 110,487,950 0.9644 114,566,518 8 41 0.002567673
L1 111,091,520 0.9445 117,619,397 7 15 0.004960339
Random Totals: 14,144,218,236 15,532,888,257 718 38,503
CATG D1 EXCEPTION VALUES: 14,613,859 12,765,306
CATG J EXCEPTION VALUES: 142,916,300 167,383,628
Total Test Values 14,301,748,395 15,713,037,191

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 785,651,860

Confidence Interval Values(5)

Local Test Value: 14,301,748,395 OUTSIDE CONFIDENCE INTERVAL
State Lower Limit: 14,927,385,331 (State Test Value minus Margin of Error Percent)
State Upper Limit: 16,498,689,051 (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