taxes Property Tax Assistance

2019 Confidence Interval Detail

Webb County
240-903/United ISD

Category Summary

(1)
Category 		(1)
Local
Value 		(1)
Stratum
Ratio 		(1)
State
Value 		(2)
Sample
Size 		(3)
Total
Parcels
Stratum
Variance
A 1,537,705,103 0.9283 1,656,474,311 22 14035 0.010426882
A 1,774,782,261 0.9738 1,822,532,616 43 11053 0.012247233
A 1,716,363,420 0.9828 1,746,401,526 40 7821 0.007811253
A 1,659,309,555 1.0163 1,632,696,600 47 4461 0.035087860
B 90,974,442 0.9618 94,587,692 10 138 0.034768963
B 80,081,459 0.8225 97,363,476 8 25 0.078621835
B 104,858,228 0.8423 124,490,357 8 17 0.037800117
B 83,729,795 0.8077 103,664,473 4 6 0.013703233
C1 109,104,502 0.8096 134,763,466 18 2943 0.052697598
C1 110,066,595 0.8834 124,594,289 13 541 0.047881459
C1 107,521,065 0.7301 147,268,956 12 207 0.153689192
C1 114,395,729 0.8610 132,863,797 9 70 0.009779394
F1 799,073,648 0.8330 959,272,086 11 1497 0.054538035
F1 870,425,790 1.0071 864,289,336 11 546 0.056100672
F1 849,525,561 1.0254 828,482,115 12 215 0.022422129
F1 818,829,774 1.1318 723,475,679 10 74 0.074541439
G1 1,420,902,266 1.1402 1,246,186,867 10 1023 0.066561619
G1 1,419,755,618 1.0875 1,305,522,407 10 417 0.024263653
G1 1,420,139,980 1.0914 1,301,209,437 10 240 0.018906078
G1 1,416,598,788 1.0141 1,396,902,463 10 124 0.006777393
L1 275,697,269 1.0639 259,138,330 10 1696 0.089258939
L1 295,109,042 0.8759 336,920,929 10 336 0.086485240
L1 352,683,670 1.0595 332,877,461 9 106 0.018354488
L1 362,296,080 1.0035 361,032,466 7 26 0.000281352
Random Totals: 17,789,929,640 17,733,011,135 354 47,617
CATG D1 EXCEPTION VALUES: 74,986,947 80,378,028
CATG J EXCEPTION VALUES: 282,707,056 276,746,611
Total Test Values(2) 18,147,623,643 18,090,135,774

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 904,506,789

Confidence Interval Values(5)

Local Test Value: 18,147,623,643 WITHIN CONFIDENCE INTERVAL
State Lower Limit: 17,185,628,985 (State Test Value minus Margin of Error Percent)
State Upper Limit: 18,994,642,563 (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