taxes Property Tax Assistance

2025 Confidence Interval Detail

Delta County
060-902/Cooper ISD

Category Summary

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

Stratum
Variance
A 2 38,252,450 0.8402 45,527,791 15 458 1,684,118,127
A 3 47,912,230 0.8440 56,768,045 15 344 1,281,220,084
A 4 50,642,080 0.8602 58,872,448 15 248 4,229,803,294
A 5 45,342,350 1.0364 43,749,855 15 126 16,229,961,170
E 0 193,721,200 1.0127 191,291,794 20 1,197 45,610,876,127
Random Totals: 375,870,310 396,209,933 80 2,373
CATG D1 EXCEPTION VALUES: 21,101,640 18,920,995
CATG J EXCEPTION VALUES: 23,789,300 24,831,948
Total Test Values 420,761,250 439,962,876

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 21,998,144

Confidence Interval Values(5)

Local Test Value: 420,761,250 WITHIN CONFIDENCE INTERVAL
State Lower Limit: 417,964,732 (State Test Value minus Margin of Error Percent)
State Upper Limit: 461,961,020 (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