taxes Property Tax Assistance

2020 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 94,743,457 0.6622 143,073,780 25 1,119 0.080778998
A 92,622,974 0.8218 112,707,440 25 596 0.036317455
A 88,327,363 0.8336 105,958,929 18 404 0.028431159
A 90,559,078 0.9085 99,679,778 14 273 0.071824299
E 54,877,909 0.6685 82,091,113 25 6,244 0.602579408
F1 20,720,387 0.9560 21,674,045 10 139 0.015508235
F1 21,030,485 0.9749 21,571,941 9 49 0.002220607
F1 21,091,537 0.9101 23,174,966 6 13 0.024195739
F1 17,795,294 0.9549 18,635,767 3 4 0.002203115
L1 10,095,740 1.0579 9,543,189 10 100 0.014211430
L1 10,685,775 1.0271 10,403,831 7 16 0.026207833
Random Totals: 522,549,999 648,514,779 152 8,957
CATG D1 EXCEPTION VALUES: 15,337,811 19,184,324
CATG L1 EXCEPTION VALUES: 3,879,740 3,546,599
Total Test Values 541,767,550 671,245,702

Margin of Error

Margin of Error Percent: 5.1555801
Margin of Error Value: 34,606,610

Confidence Interval Values(5)

Local Test Value: 541,767,550 OUTSIDE CONFIDENCE INTERVAL
State Lower Limit: 636,639,092 (State Test Value minus Margin of Error Percent)
State Upper Limit: 705,852,312 (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