taxes Property Tax Assistance

2021 Confidence Interval Detail

Zapata County
253-901/Zapata County ISD

Category Summary

(1)
Category 		(1)
Local
Value 		(1)
Stratum
Ratio 		(1)
State
Value 		(2)
Sample
Size 		(3)
Total
Parcels
Stratum
Variance
A 82,397,429 0.9448 87,211,504 15 2,088 0.115517203
A 88,219,046 0.8850 99,682,538 15 1,121 0.067400578
A 88,831,105 0.9699 91,587,901 18 676 0.020676745
A 100,595,601 0.9590 104,896,351 17 442 0.038025988
E 97,075,242 0.9438 102,855,734 20 2,194 0.116656082
F1 14,765,645 0.9468 15,595,316 15 196 0.016998323
F1 15,550,291 0.8687 17,900,646 15 94 0.071513152
F1 18,005,139 0.9445 19,063,143 15 58 0.025652534
F1 29,168,162 0.7312 39,890,812 12 44 0.731803076
G1 49,267,103 1.3028 37,816,321 10 1,050 0.705291339
G1 49,392,949 1.2207 40,462,807 10 263 0.177742316
G1 49,038,648 1.6005 30,639,580 10 129 0.311937916
G1 49,204,104 1.2601 39,047,777 9 59 0.174072898
Random Totals: 731,510,464 726,650,430 181 8,414
CATG D1 EXCEPTION VALUES: 35,058,590 43,635,478
CATG J EXCEPTION VALUES: 59,282,128 59,382,873
Total Test Values 825,851,182 829,668,781

Margin of Error

Margin of Error Percent: 5.0048370
Margin of Error Value: 41,523,570

Confidence Interval Values(5)

Local Test Value: 825,851,182 WITHIN CONFIDENCE INTERVAL
State Lower Limit: 788,145,211 (State Test Value minus Margin of Error Percent)
State Upper Limit: 871,192,351 (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