taxes Property Tax

School and Appraisal Districts Property Value Study 2013 Report

2013 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 1,078,682,647 0.8916 1,209,828,002 48 13,485 .028759486
A 1,091,313,538 0.9210 1,184,922,408 49 8,711 .015332956
A 1,148,613,698 0.9498 1,209,321,645 53 6,286 .010652703
A 1,075,114,319 0.9822 1,094,598,166 50 3,159 .026586823
C1 88,002,232 0.8795 100,059,388 14 3,829 .030259007
C1 87,315,002 0.9072 96,246,695 10 944 .034396791
C1 87,034,536 0.9168 94,932,958 10 295 .021394119
C1 92,322,166 0.9636 95,809,637 9 92 .009523469
F1 566,585,791 0.8842 640,789,178 21 1,391 .083710022
F1 568,282,448 0.9379 605,909,423 13 457 .033146883
F1 559,201,364 0.9426 593,254,152 9 181 .030778084
F1 579,428,773 0.8954 647,117,236 8 56 .017628775
G1 865,750,287 1.0049 861,528,796 10 655 .012470877
G1 863,017,278 0.9726 887,330,123 10 190 .006510804
G1 872,345,671 1.0218 853,734,264 9 109 .009889573
G1 854,239,457 1.0307 828,795,437 9 61 .017424471
L1 189,828,000 1.0073 188,452,298 10 1,385 .003710130
L1 220,968,590 0.9697 227,873,146 10 293 .005033967
L1 208,061,510 0.9883 210,524,648 9 70 .002343027
L1 237,621,630 0.9928 239,344,913 7 29 .000136879
Random Totals: 11,333,728,937   11,870,372,513 368 41,678  
Catg D1 Exception Values: 69,834,099   83,919,174      
Total Test Values (4): 11,403,563,036   11,954,291,687      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 597,714,584

Confidence Interval Values (5)

State Lower Limit: 11,356,577,103 (State Test Value minus Margin of Error Percent)
Local Test Value: 11,403,563,036 (Within Confidence Interval)
State Upper Limit: 12,552,006,271 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 13,334,306,024 (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, D3, 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