taxes Property Tax Assistance

2019 Confidence Interval Detail

Jeff Davis County
122-902/Valentine ISD

Category Summary

(1)
Category 		(1)
Local
Value 		(1)
Stratum
Ratio 		(1)
State
Value 		(2)
Sample
Size 		(3)
Total
Parcels
Stratum
Variance
A 1,269,540 0.8623 1,472,272 10 52 0.113490128
A 1,354,720 1.0981 1,233,695 7 17 0.016875714
A 1,088,020 1.0031 1,084,658 6 9 0.020040428
A 1,308,670 1.2721 1,028,748 3 5 0.013990106
C1 1,718,500 0.5471 3,141,108 10 831 0.004665689
C1 12,480 0.5595 22,306 4 6 0.000002960
C1 873,850 0.5061 1,726,635 10 307 0.010583048
C1 812,270 0.4356 1,864,715 9 117 0.077099764
E 11,401,750 0.9964 11,442,945 20 270 0.143917596
Random Totals: 19,839,800 23,017,082 79 1,614
CATG D1 EXCEPTION VALUES: 7,841,680 8,510,062
CATG J EXCEPTION VALUES: 20,874,710 21,354,466
Total Test Values(2) 48,556,190 52,881,610

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 2,644,081

Confidence Interval Values(5)

Local Test Value: 48,556,190 OUTSIDE CONFIDENCE INTERVAL
State Lower Limit: 50,237,529 (State Test Value minus Margin of Error Percent)
State Upper Limit: 55,525,691 (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