taxes Property Tax Assistance

2021 Confidence Interval Detail

Blanco County
016-901/Johnson City ISD

Category Summary

(1)
Category 		(1)
Local
Value 		(1)
Stratum
Ratio 		(1)
State
Value 		(2)
Sample
Size 		(3)
Total
Parcels
Stratum
Variance
A 23,226,780 1.1583 20,052,473 10 174 0.031848605
A 26,519,790 1.2053 22,002,647 12 136 0.036925780
A 35,332,920 0.9989 35,371,829 11 131 0.011362313
A 40,769,700 0.9855 41,369,559 11 95 0.006346272
E 651,084,257 0.9313 699,113,344 23 2,751 0.010766958
F1 17,739,238 0.9468 18,735,993 10 94 0.018186384
F1 23,539,910 1.0476 22,470,323 9 58 0.009418522
F1 28,898,536 0.9374 30,828,393 7 38 0.019404918
F1 19,578,190 1.0240 19,120,002 5 15 0.002944857
L1 23,766,230 0.9598 24,761,648 10 61 0.016107417
L1 47,011,790 1.0000 47,011,790 4 11 0.000000000
Random Totals: 937,467,341 980,838,001 112 3,564
CATG D1 EXCEPTION VALUES: 29,761,416 30,690,040
Total Test Values 967,228,757 1,011,528,041

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 50,576,402

Confidence Interval Values(5)

Local Test Value: 967,228,757 WITHIN CONFIDENCE INTERVAL
State Lower Limit: 960,951,639 (State Test Value minus Margin of Error Percent)
State Upper Limit: 1,062,104,443 (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