taxes Property Tax

School and Appraisal Districts Property Value Study 2014 Report

2014 Confidence Interval Detail
227/Travis
227-901/Austin ISD

Category Summary

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

Stratum
Variance
A 8,500,189,786 0.9576 8,876,555,750 497 49,652 .012104461
A 11,075,584,342 0.9565 11,579,283,159 496 42,121 .013468053
A 11,815,302,635 0.9526 12,403,215,027 497 29,762 .010716935
A 12,958,167,697 0.9364 13,838,282,462 493 17,017 .033272520
B 2,910,800,215 0.9380 3,103,198,523 56 7,950 .045290375
B 2,467,668,298 0.9281 2,658,838,808 10 340 .025651680
B 2,945,471,258 0.9220 3,194,654,293 9 129 .002322012
B 3,752,311,486 0.9789 3,833,191,834 8 79 .040221801
C1 218,107,441 0.8291 263,065,301 24 2,220 .028387057
C1 233,471,681 0.8614 271,037,475 24 752 .044022448
C1 242,987,701 0.8286 293,250,906 7 261 .067936997
C1 230,506,526 1.0780 213,827,946 8 52 .025325175
F1 4,217,791,123 0.9178 4,595,544,915 12 4,439 .017198032
F1 4,471,653,097 0.8735 5,119,236,516 9 1,015 .043481006
F1 4,269,382,068 0.9799 4,356,956,902 9 262 .015807700
F1 4,860,613,190 1.0262 4,736,516,459 9 76 .054366681
L1 842,869,591 1.0028 840,516,146 10 6,899 .141524894
L1 841,392,667 1.0730 784,149,736 11 1,368 .015593662
L1 867,458,596 1.0266 844,982,073 10 374 .003822043
L1 818,302,866 1.0419 785,394,823 9 83 .003365788
Random Totals: 78,540,032,264   82,591,699,054 2,208 164,851  
Catg J Exception Values: 2,378,678   2,529,829      
Catg D1 Exception Values: 1,719,988   1,038,304      
Total Test Values (4): 78,544,130,930   82,595,267,187      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 4,129,763,359

Confidence Interval Values (5)

State Lower Limit: 78,465,503,828 (State Test Value minus Margin of Error Percent)
Local Test Value: 78,544,130,930 (Within Confidence Interval)
State Upper Limit: 86,725,030,546 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 75,918,710,418 (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