taxes Property Tax

School and Appraisal Districts Property Value Study 2015 Report

2015 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 774,877,380 0.9218 840,613,343 100 11,078 .038007587
A 875,557,850 0.9876 886,551,083 100 6,905 .012218633
A 930,235,540 0.9957 934,252,827 100 5,139 .007074994
A 955,261,010 0.9730 981,768,767 99 2,888 .022880917
F1 176,935,780 0.9756 181,360,988 18 1,103 .021193911
F1 181,384,160 1.0078 179,980,314 7 289 .011265002
F1 219,153,670 0.9275 236,284,280 10 97 .041559020
F1 156,806,560 0.8519 184,066,862 8 19 .011269918
L1 104,477,480 0.9909 105,436,956 10 940 .002739489
L1 107,186,110 0.9565 112,060,753 10 206 .014685362
L1 121,989,320 0.9814 124,301,325 9 75 .006192511
L1 126,632,890 0.9640 131,361,919 6 18 .004973616
Random Totals: 4,730,497,750   4,898,039,417 477 28,757  
Catg D1 Exception Values: 8,085,360   7,079,317      
Total Test Values (4): 4,738,583,110   4,905,118,734      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 245,255,936

Confidence Interval Values (5)

State Lower Limit: 4,659,862,798 (State Test Value minus Margin of Error Percent)
Local Test Value: 4,738,583,110 (Within Confidence Interval)
State Upper Limit: 5,150,374,670 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 4,545,509,107 (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