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189/Presidio
2017 Confidence Interval Detail
189/Presidio
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 | 28,372,200 | 0.9441 | 30,052,113 | 15 | 407 | .098885505 |
| A | 31,699,350 | 0.9328 | 33,983,008 | 17 | 264 | .055459432 |
| A | 31,995,150 | 0.8392 | 38,125,775 | 17 | 181 | .047226042 |
| A | 42,522,038 | 1.1359 | 37,434,667 | 16 | 127 | .043850627 |
| E | 38,221,870 | 0.8380 | 45,610,823 | 16 | 610 | .162080710 |
| F1 | 8,535,947 | 1.0466 | 8,155,883 | 11 | 79 | .027488874 |
| F1 | 8,385,900 | 1.1117 | 7,543,312 | 10 | 34 | .050014935 |
| F1 | 11,961,577 | 0.8926 | 13,400,826 | 6 | 11 | .024473374 |
| Random Totals: | 201,694,032 | 214,306,407 | 108 | 1,713 | ||
| Catg J Exception Values: | 39,966,682 | 38,834,806 | ||||
| Catg D1 Exception Values: | 11,955,922 | 12,115,178 | ||||
| Catg F1 Exception Values: | 8,962,235 | 8,906,028 | ||||
| Total Test Values (4): | 262,578,871 | 274,162,419 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 13,708,120 |
Confidence Interval Values (5)
| State Lower Limit: | 260,454,299 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 262,578,871 | (Within Confidence Interval) |
| State Upper Limit: | 287,870,539 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 352,462,073 | (See ISD Summary Worksheet) |
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
(6) Includes local value of unstudied property categories and sub-categories