taxes Property Tax Assistance

2019 Confidence Interval Detail

Webb County
240-901/Laredo ISD

Category Summary

(1)
Category 		(1)
Local
Value 		(1)
Stratum
Ratio 		(1)
State
Value 		(2)
Sample
Size 		(3)
Total
Parcels
Stratum
Variance
A 323,059,344 0.8616 374,952,813 22 5655 0.036161039
A 360,348,608 1.0082 357,417,782 23 4378 0.034733336
A 371,751,834 0.9566 388,617,849 20 3322 0.039131590
A 389,665,098 0.9759 399,287,937 14 2088 0.128013542
B 49,520,650 0.9128 54,251,369 12 335 0.039252149
B 52,405,044 0.9572 54,748,270 12 222 0.016385818
B 52,381,682 0.9411 55,660,060 9 128 0.006142337
B 58,498,732 0.8820 66,325,093 10 63 0.016910339
F1 192,930,201 0.8974 214,987,966 15 1107 0.105474755
F1 194,748,769 0.9875 197,213,943 17 410 0.037206581
F1 192,771,266 0.8135 236,965,293 18 147 0.181360479
F1 195,817,566 1.0987 178,226,601 5 10 0.000999731
L1 48,898,650 1.0961 44,611,486 10 765 0.017664814
L1 48,479,190 1.0340 46,885,097 9 171 0.011737577
L1 49,697,858 1.0853 45,791,816 9 68 0.026893702
L1 48,053,780 1.0734 44,767,822 5 15 0.021266371
Random Totals: 2,629,028,272 2,760,711,197 210 18,884
CATG D1 EXCEPTION VALUES: 460 509
Total Test Values(1) 2,629,028,732 2,760,711,706

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 138,035,585

Confidence Interval Values(5)

Local Test Value: 2,629,028,732 WITHIN CONFIDENCE INTERVAL
State Lower Limit: 2,622,676,121 (State Test Value minus Margin of Error Percent)
State Upper Limit: 2,898,747,291 (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