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Presidio County
2021 Confidence Interval Detail
Presidio County
189-901/Marfa ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 33,434,990 | 0.9120 | 36,661,173 | 15 | 309 | 0.047745360 |
| A | 38,661,741 | 0.8357 | 46,262,703 | 15 | 213 | 0.087706201 |
| A | 71,595,462 | 0.8806 | 81,303,046 | 18 | 261 | 0.110147598 |
| A | 84,212,546 | 1.0428 | 80,756,181 | 15 | 161 | 0.046232899 |
| E | 43,794,403 | 0.9559 | 45,814,837 | 21 | 602 | 0.439567140 |
| F1 | 12,699,957 | 1.0457 | 12,144,934 | 15 | 81 | 0.013302817 |
| F1 | 11,939,060 | 1.0483 | 11,388,973 | 15 | 30 | 0.012206576 |
| F1 | 11,522,254 | 1.1329 | 10,170,756 | 8 | 9 | 0.076316083 |
| Random Totals: | 307,860,413 | 324,502,603 | 122 | 1,666 | ||
| CATG D1 EXCEPTION VALUES: | 11,739,680 | 14,679,489 | ||||
| CATG F1 EXCEPTION VALUES: | 9,816,214 | 8,744,096 | ||||
| CATG J EXCEPTION VALUES: | 51,276,595 | 53,706,160 | ||||
| Total Test Values | 380,692,902 | 401,632,348 |
Margin of Error
| Margin of Error Percent: | 5.2695328 |
|---|---|
| Margin of Error Value: | 21,164,148 |
Confidence Interval Values(5)
| Local Test Value: | 380,692,902 | WITHIN CONFIDENCE INTERVAL |
|---|---|---|
| State Lower Limit: | 380,468,200 | (State Test Value minus Margin of Error Percent) |
| State Upper Limit: | 422,796,496 | (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