taxes Property Tax Assistance

2017 Confidence Interval Detail

008/Austin
008-901/Bellville ISD

Category Summary

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

Stratum
Variance
A 116,397,819 0.9350 124,489,646 21 1,059 .034837268
A 129,383,206 1.0376 124,694,686 29 712 .017603024
A 114,853,439 0.9987 115,002,943 15 423 .004537312
A 163,036,750 0.9726 167,629,807 22 368 .018077135
E 579,490,132 0.8744 662,728,879 34 2,987 .185401540
F1 17,563,467 1.0213 17,197,167 8 130 .009934287
F1 17,056,918 1.0380 16,432,484 10 60 .011501824
F1 17,619,950 0.9797 17,985,046 7 33 .025266218
F1 21,379,606 1.0408 20,541,512 6 18 .003209128
Random Totals: 1,176,781,287   1,266,702,170 152 5,790  
Catg D1 Exception Values: 19,662,792   18,100,815      
Total Test Values (4): 1,196,444,079   1,284,802,985      

Margin of Error

Margin of Error Percent: 7.5187250
Margin of Error Value: 96,600,803

Confidence Interval Values (5)

State Lower Limit: 1,188,202,182 (State Test Value minus Margin of Error Percent)
Local Test Value: 1,196,444,079 (Within Confidence Interval)
State Upper Limit: 1,381,403,788 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 1,182,066,797 (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