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 0.8968 91,879,381 15 2,088 0.103179254
A 88,219,046 0.8314 106,109,028 15 1,121 0.058200666
A 88,831,105 0.9081 97,820,840 18 676 0.019277455
A 100,595,601 0.8834 113,873,218 17 442 0.041990913
E 97,075,242 0.8091 119,979,288 21 2,194 0.072441036
F1 14,765,645 0.8487 17,397,956 15 196 0.084698720
F1 15,550,291 0.7847 19,816,861 15 94 0.072377699
F1 18,005,139 0.8898 20,235,040 15 58 0.019988059
F1 29,168,162 0.7111 41,018,369 12 44 0.731183235
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: 731,510,464 776,096,466 182 8,414
CATG D1 EXCEPTION VALUES: 35,058,590 51,701,871
CATG J EXCEPTION VALUES: 59,282,128 59,525,825
Total Test Values 825,851,182 887,324,162

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 44,366,208

Confidence Interval Values(5)

Local Test Value: 825,851,182 OUTSIDE CONFIDENCE INTERVAL
State Lower Limit: 842,957,954 (State Test Value minus Margin of Error Percent)
State Upper Limit: 931,690,370 (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