taxes Property Tax Assistance

2023 Confidence Interval Detail

Presidio County
189-901/Marfa ISD

Category Summary

(1)
Category 		(1)
Local
Value 		(1)
Stratum
Ratio 		(1)
State
Value 		(2)
Sample
Size 		(3)
Total
Parcels
Stratum
Variance
A 66,502,608 0.8129 81,809,088 13 407 0.031903409
A 71,446,440 0.9966 71,690,187 13 243 0.026311006
A 88,370,575 1.1449 77,186,283 12 204 0.033191933
A 105,152,124 1.2268 85,712,524 12 135 0.016370317
E 58,677,697 1.5137 38,764,416 19 650 0.985734635
F1 10,783,645 0.8042 13,409,158 12 62 0.065183739
F1 15,426,036 0.8798 17,533,571 11 38 0.020998471
F1 14,654,361 0.7673 19,098,607 7 13 0.203843237
Random Totals: 431,013,486 405,203,834 99 1,752
CATG D1 EXCEPTION VALUES: 12,187,684 9,475,458
CATG F1 EXCEPTION VALUES: 11,400,000 13,515,757
CATG J EXCEPTION VALUES: 62,477,743 64,804,412
Total Test Values 517,078,913 492,999,461

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 24,649,973

Confidence Interval Values(5)

Local Test Value: 517,078,913 WITHIN CONFIDENCE INTERVAL
State Lower Limit: 468,349,488 (State Test Value minus Margin of Error Percent)
State Upper Limit: 517,649,434 (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