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Jeff Davis County
2020 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 | 1,252,500 | 0.7189 | 1,742,245 | 15 | 51 | 0.055975924 |
| A | 1,252,580 | 1.0071 | 1,243,749 | 10 | 16 | 0.025806462 |
| A | 1,395,500 | 0.9980 | 1,398,297 | 8 | 11 | 0.012358950 |
| C1 | 1,619,210 | 0.7870 | 2,057,446 | 15 | 783 | 0.000000087 |
| C1 | 873,850 | 0.7084 | 1,233,554 | 15 | 307 | 0.142102886 |
| C1 | 788,500 | 0.5958 | 1,323,431 | 15 | 115 | 0.065291931 |
| E | 11,373,240 | 0.7529 | 15,105,910 | 20 | 272 | 1.239960665 |
| Random Totals: | 18,555,380 | 24,104,632 | 98 | 1,555 | ||
| CATG A EXCEPTION VALUES: | 1,107,500 | 953,323 | ||||
| CATG C1 EXCEPTION VALUES: | 12,480 | 15,854 | ||||
| CATG D1 EXCEPTION VALUES: | 7,733,010 | 7,882,776 | ||||
| Total Test Values | 27,408,370 | 32,956,585 |
Margin of Error
| Margin of Error Percent: | 21.8306231 |
|---|---|
| Margin of Error Value: | 7,194,628 |
Confidence Interval Values(5)
| Local Test Value: | 27,408,370 | WITHIN CONFIDENCE INTERVAL |
|---|---|---|
| State Lower Limit: | 25,761,957 | (State Test Value minus Margin of Error Percent) |
| State Upper Limit: | 40,151,213 | (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