taxes Property Tax Assistance

2021 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 79,386,040 0.7419 107,003,693 15 965 0.229158295
A 84,170,274 0.8007 105,120,862 19 548 0.025222572
A 117,003,784 0.9621 121,612,913 28 533 0.021592269
A 172,633,115 0.9396 183,730,433 37 497 0.038476223
E 55,759,015 0.4854 114,872,301 28 6,296 0.109829818
F1 20,428,307 1.0210 20,008,136 10 146 0.003300286
F1 21,383,253 0.9953 21,484,229 9 54 0.005486819
F1 27,789,635 0.9946 27,940,514 7 17 0.008502572
Random Totals: 578,553,423 701,773,081 153 9,056
CATG D1 EXCEPTION VALUES: 18,340,226 19,455,767
CATG F1 EXCEPTION VALUES: 13,518,673 13,238,176
CATG J EXCEPTION VALUES: 53,225,410 55,631,895
Total Test Values 663,637,732 790,098,919

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 39,504,946

Confidence Interval Values(5)

Local Test Value: 663,637,732 OUTSIDE CONFIDENCE INTERVAL
State Lower Limit: 750,593,973 (State Test Value minus Margin of Error Percent)
State Upper Limit: 829,603,865 (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