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Travis County
2020 Confidence Interval Detail
Travis County
011-902/Elgin ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 62,985,272 | 0.9184 | 68,581,524 | 17 | 414 | 0.016167839 |
| A | 69,786,340 | 0.9452 | 73,832,353 | 11 | 387 | 0.008687600 |
| A | 63,311,872 | 1.0141 | 62,431,587 | 10 | 312 | 0.004048363 |
| A | 63,933,335 | 1.0674 | 59,896,323 | 9 | 223 | 0.006769562 |
| E | 57,528,259 | 0.8599 | 66,901,104 | 20 | 428 | 0.056683214 |
| F1 | 19,192,666 | 0.9496 | 20,211,316 | 8 | 30 | 0.013234093 |
| Random Totals: | 336,737,744 | 351,854,207 | 75 | 1,794 | ||
| CATG D1 EXCEPTION VALUES: | 6,059,467 | 8,215,675 | ||||
| Total Test Values | 342,797,211 | 360,069,882 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 18,003,494 |
Confidence Interval Values(5)
| Local Test Value: | 342,797,211 | WITHIN CONFIDENCE INTERVAL |
|---|---|---|
| State Lower Limit: | 342,066,388 | (State Test Value minus Margin of Error Percent) |
| State Upper Limit: | 378,073,376 | (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