taxes Property Tax Assistance

2018 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 121,466,329 0.8912 136,295,252 25 1039 0.042820161
A 135,039,538 1.0500 128,609,084 21 689 0.009215800
A 138,786,265 1.0582 131,153,152 20 473 0.020581997
A 162,392,293 1.0092 160,911,903 16 334 0.015143553
E 619,888,538 0.9514 651,554,066 39 3194 0.063668774
F1 18,786,988 0.8940 21,014,528 10 135 0.050983492
F1 19,149,808 0.9790 19,560,580 9 63 0.033015788
F1 17,148,513 0.7552 22,707,247 8 30 0.468231021
F1 21,172,618 0.7163 29,558,311 6 17 0.105326058
Random Totals: 1,253,830,890 1,301,364,123 154 5,974
CATG D1 EXCEPTION VALUES: 17,515,608 16,672,378
Total Test Values(1) 1,271,346,498 1,318,036,501

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 65,901,825

Confidence Interval Values(5)

Local Test Value: 1,271,346,498 WITHIN CONFIDENCE INTERVAL
State Lower Limit: 1,252,134,676 (State Test Value minus Margin of Error Percent)
State Upper Limit: 1,383,938,326 (State Test Value plus Margin of Error Percent)

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