taxes Property Tax

School and Appraisal Districts Property Value Study 2014 Report

2014 Confidence Interval Detail
226/Tom Green
226-903/San Angelo ISD

Category Summary

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

Stratum
Variance
A 660,804,454 0.8690 760,419,395 67 10,575 .031780352
A 784,208,261 0.8931 878,074,416 77 6,985 .019358207
A 834,684,200 0.9622 867,474,745 70 5,026 .013642706
A 938,883,370 0.9823 955,801,049 62 3,045 .019532120
F1 162,140,660 0.9900 163,778,444 30 1,106 .011578710
F1 164,182,040 0.8602 190,864,962 18 298 .071250520
F1 147,007,350 0.9203 159,738,509 16 86 .022113108
F1 221,646,050 0.9159 241,998,089 14 33 .051264064
L1 95,452,950 0.9909 96,329,549 10 953 .001753261
L1 107,365,970 0.9912 108,319,179 11 225 .000866560
L1 90,517,860 1.0026 90,283,124 9 60 .000446252
L1 119,245,350 0.9943 119,928,945 6 20 .000612414
Random Totals: 4,326,138,515   4,633,010,406 390 28,412  
Catg D1 Exception Values: 7,688,320   7,329,324      
Total Test Values (4): 4,333,826,835   4,640,339,730      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 232,016,987

Confidence Interval Values (5)

Local Test Value: 4,333,826,835 (Outside Confidence Interval)
State Lower Limit: 4,408,322,743 (State Test Value minus Margin of Error Percent)
State Upper Limit: 4,872,356,717 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 4,300,801,059 (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