taxes Property Tax Assistance

2017 Confidence Interval Detail

240/Webb
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 1,152,996,610 0.8654 1,332,327,952 83 12,416 .015687666
A 1,439,647,106 0.9198 1,565,174,066 91 10,216 .008526624
A 1,677,641,814 0.9552 1,756,325,182 95 8,491 .004935761
A 1,607,839,176 0.9782 1,643,671,208 86 4,570 .010002965
B 83,677,364 0.9929 84,275,722 11 101 .004930227
B 75,515,130 1.0005 75,477,391 8 22 .012511358
B 108,424,338 1.0045 107,938,614 5 15 .013680894
B 59,296,275 0.9406 63,040,905 3 4 .015002071
C1 84,942,226 0.7047 120,536,719 30 2,488 .216258751
C1 92,450,478 0.8415 109,863,907 16 534 .045636024
C1 109,423,975 0.8465 129,266,361 9 227 .076057461
C1 111,237,509 0.9548 116,503,466 7 67 .008946089
F1 688,028,454 0.9415 730,779,027 14 1,449 .026142298
F1 703,639,947 1.0862 647,799,620 13 496 .059902414
F1 711,856,168 0.9539 746,258,694 14 210 .040673842
F1 716,620,770 0.9367 765,048,329 9 73 .072243186
G1 960,875,374 1.0250 937,439,389 11 906 .005384536
G1 960,612,234 0.9916 968,749,732 11 369 .014717252
G1 962,879,327 1.0207 943,351,942 10 210 .006062989
G1 956,926,147 1.0031 953,968,844 10 115 .001078867
L1 288,243,580 0.9976 288,937,029 10 1,600 .043837366
L1 259,418,590 0.9711 267,138,904 10 252 .006514084
L1 272,979,660 0.9870 276,575,137 9 75 .000353301
L1 234,811,330 1.0114 232,164,653 7 23 .001579736
Random Totals: 14,319,983,582   14,862,612,793 572 44,929  
Catg J Exception Values: 232,198,634   227,153,304      
Catg D1 Exception Values: 71,519,558   88,257,869      
Total Test Values (4): 14,623,701,774   15,178,023,966      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 758,901,198

Confidence Interval Values (5)

State Lower Limit: 14,419,122,768 (State Test Value minus Margin of Error Percent)
Local Test Value: 14,623,701,774 (Within Confidence Interval)
State Upper Limit: 15,936,925,164 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 15,889,218,667 (See ISD Summary Worksheet)

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
(6) Includes local value of unstudied property categories and sub-categories