taxes Property Tax Assistance

2024 Confidence Interval Detail

Brazoria County
020-901/Alvin ISD

Category Summary

(1)
Category 		(1)
Stratum
Number 		(1)
Local
Value 		(1)
Stratum
Ratio 		(1)
State
Value 		(2)
Sample
Size 		(3)
Total
Parcels
Stratum
Variance
A 2 3,594,798,055 1.0136 3,546,564,774 201 13,178 0.012438543
A 3 3,425,818,773 1.0245 3,343,893,385 192 9,239 0.008689307
A 4 3,348,793,813 1.0198 3,283,775,067 188 7,302 0.005426712
A 5 3,525,775,077 1.0121 3,483,623,236 199 5,525 0.016770294
B 2 921,727,940 1.0221 901,798,200 7 41 0.011312940
C1 2 85,182,158 0.5985 142,326,079 23 1,534 0.209931449
C1 3 89,629,301 1.0462 85,671,288 10 543 0.020000470
C1 4 72,674,871 0.7132 101,899,707 10 178 0.364737617
C1 5 61,991,431 1.2185 50,875,200 9 40 0.115305709
E 0 890,722,899 1.0680 834,010,205 21 3,444 0.251232782
F1 2 598,986,639 1.0711 559,225,692 14 653 0.024953029
F1 3 608,572,456 1.0461 581,753,614 10 211 0.015776722
F1 4 644,231,922 1.1016 584,814,744 10 88 0.006403545
F1 5 683,134,850 1.0218 668,560,237 7 27 0.011203796
L1 2 131,555,890 1.0200 128,976,363 10 1,079 0.005820303
L1 3 134,444,580 0.9241 145,487,047 10 175 0.008558182
L1 4 115,234,180 0.9333 123,469,602 10 40 0.013426810
L1 5 134,333,250 0.8279 162,257,821 7 15 0.006519385
Random Totals: 19,067,608,085 18,728,982,261 938 43,312
CATG D1 EXCEPTION VALUES: 15,142,511 14,261,322
CATG G1 EXCEPTION VALUES: 230,267,406 234,929,695
CATG J EXCEPTION VALUES: 102,748,276 106,367,752
Total Test Values 19,415,766,278 19,084,541,030

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 954,227,052

Confidence Interval Values(5)

Local Test Value: 19,415,766,278 WITHIN CONFIDENCE INTERVAL
State Lower Limit: 18,130,313,978 (State Test Value minus Margin of Error Percent)
State Upper Limit: 20,038,768,082 (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