taxes Property Tax Assistance

2025 Confidence Interval Detail

Terry County
223-904/Wellman-Union CISD

Category Summary

(1)
Category
(1)
Stratum
Number
(1)
Local
Value
(1)
Stratum
Ratio
(1)
State
Value
(2)
Sample
Size
(3)
Total
Parcels

Stratum
Variance
E 0 35,526,988 0.9060 39,213,011 20 373 24,047,471,039
G1 2 23,109,305 1.0013 23,079,302 8 25 2,070,535,840,846
Random Totals: 58,636,293 62,292,313 28 398
CATG D1 EXCEPTION VALUES: 6,404,751 8,307,560
CATG G1 EXCEPTION VALUES: 12,805,439 12,833,478
CATG J EXCEPTION VALUES: 1,306,155 1,525,082
Total Test Values 79,152,638 84,958,433

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 4,247,922

Confidence Interval Values(5)

Local Test Value: 79,152,638 OUTSIDE CONFIDENCE INTERVAL
State Lower Limit: 80,710,511 (State Test Value minus Margin of Error Percent)
State Upper Limit: 89,206,355 (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