taxes Property Tax Assistance

2023 Confidence Interval Detail

Brewster County
022-901/Alpine ISD

Category Summary

(1)
Category 		(1)
Local
Value 		(1)
Stratum
Ratio 		(1)
State
Value 		(2)
Sample
Size 		(3)
Total
Parcels
Stratum
Variance
A 129,606,634 0.8769 147,800,928 11 1,142 0.049550761
A 139,059,288 0.9853 141,133,957 19 656 0.022171031
A 158,124,167 0.9537 165,800,741 23 518 0.057809761
A 160,022,825 0.9855 162,377,296 16 318 0.060541125
E 131,878,923 0.8094 162,934,177 32 6,216 0.400897441
F1 20,316,765 0.9721 20,899,871 10 135 0.010880593
F1 31,107,367 0.9268 33,564,272 9 77 0.044198046
F1 27,214,088 0.9888 27,522,338 7 19 0.013677790
F1 27,954,532 0.9490 29,456,830 4 6 0.001052294
Random Totals: 825,284,589 891,490,410 131 9,087
CATG D1 EXCEPTION VALUES: 18,655,646 21,231,020
CATG J EXCEPTION VALUES: 62,269,437 64,157,475
Total Test Values 906,209,672 976,878,905

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 48,843,945

Confidence Interval Values(5)

Local Test Value: 906,209,672 OUTSIDE CONFIDENCE INTERVAL
State Lower Limit: 928,034,960 (State Test Value minus Margin of Error Percent)
State Upper Limit: 1,025,722,850 (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