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 0.9621 144,537,250 20 656 0.031417356
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 0.7582 173,936,854 33 6,216 0.506461503
F1 20,316,765 0.9473 21,447,023 10 135 0.014180461
F1 31,107,367 0.8884 35,015,046 9 77 0.040460955
F1 27,214,088 0.9488 28,682,639 7 19 0.017729587
F1 27,954,532 0.9490 29,456,830 4 6 0.001052294
Random Totals: 825,284,589 909,054,607 133 9,087
CATG D1 EXCEPTION VALUES: 18,343,453 20,873,195
CATG J EXCEPTION VALUES: 62,269,437 64,157,475
Total Test Values 905,897,479 994,085,277

Margin of Error

Margin of Error Percent: 5.4310428
Margin of Error Value: 53,989,197

Confidence Interval Values(5)

Local Test Value: 905,897,479 OUTSIDE CONFIDENCE INTERVAL
State Lower Limit: 940,096,080 (State Test Value minus Margin of Error Percent)
State Upper Limit: 1,048,074,474 (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