taxes Property Tax

School and Appraisal Districts Property Value Study 2014 Report

2014 Confidence Interval Detail
227/Travis
227-910/Del Valle ISD

Category Summary

(1)
Category
(1)
Local
Value
(1)
Stratum
Ratio
(1)
State
Value
(2)
Sample
Size
(3)
Total
Parcels

Stratum
Variance
A 139,069,696 0.8738 159,155,065 16 1,987 .037622615
A 144,796,785 0.9115 158,855,496 28 1,510 .010426879
A 451,142,932 0.9526 473,591,153 78 3,775 .015326192
A 479,253,667 0.9395 510,115,665 77 2,677 .022369061
B 87,176,850 0.7875 110,700,762 8 33 .016459817
B 178,288,081 0.9261 192,514,935 7 11 .025209510
F1 175,188,347 1.0421 168,110,879 11 204 .044001848
F1 186,981,333 0.8494 220,133,427 8 56 .010916784
F1 185,312,657 0.9129 202,993,380 8 21 .013126442
F1 210,913,811 1.0365 203,486,552 4 10 .025559805
L1 149,024,966 1.1827 126,004,030 8 300 .014423613
L1 141,692,486 1.0741 131,917,406 8 50 .012725227
L1 168,222,493 1.0685 157,437,991 5 18 .005307609
L1 81,207,658 1.0376 78,264,898 4 4 .002782852
Random Totals: 2,778,271,762   2,893,281,639 270 10,656  
Catg D1 Exception Values: 8,353,719   8,402,167      
Catg B Exception Values: 69,760,000   77,072,779      
Catg F1 Exception Values: 271,488,515   269,343,841      
Total Test Values (4): 3,127,873,996   3,248,100,426      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 162,405,021

Confidence Interval Values (5)

State Lower Limit: 3,085,695,405 (State Test Value minus Margin of Error Percent)
Local Test Value: 3,127,873,996 (Within Confidence Interval)
State Upper Limit: 3,410,505,447 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 3,706,794,021 (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