taxes Property Tax Assistance

2017 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 1,035,892,446 0.9683 1,069,805,273 88 12,380 .035425551
A 924,108,020 0.9676 955,051,695 93 6,131 .016185833
A 962,445,210 1.0023 960,236,666 95 4,652 .013656946
A 981,268,170 0.9723 1,009,223,666 86 2,713 .017024207
F1 236,748,060 0.8992 263,287,433 20 1,291 .031171801
F1 220,760,200 0.9066 243,503,419 11 316 .043510520
F1 225,540,160 1.0069 223,994,597 10 90 .004586441
F1 149,211,650 1.0186 146,486,992 8 20 .004713116
L1 123,378,940 1.0040 122,887,390 10 976 .001964652
L1 122,273,460 0.9728 125,692,290 9 189 .014524776
L1 128,693,550 1.0441 123,257,878 8 56 .004606019
L1 121,613,600 1.0292 118,163,234 5 12 .011859365
Random Totals: 5,231,933,466   5,361,590,533 443 28,826  
Catg D1 Exception Values: 8,383,810   6,291,302      
Total Test Values (4): 5,240,317,276   5,367,881,835      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 268,394,091

Confidence Interval Values (5)

State Lower Limit: 5,099,487,744 (State Test Value minus Margin of Error Percent)
Local Test Value: 5,240,317,276 (Within Confidence Interval)
State Upper Limit: 5,636,275,926 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 4,978,061,160 (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, D2, E, 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