2008 Confidence Interval Detail
227/Travis
227-912/Lago Vista ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 214,744,441 | 0.9692 | 221,568,759 | 59 | 1,475 | .027740714 |
| A | 256,671,883 | 1.0043 | 255,572,919 | 62 | 1,147 | .012566378 |
| A | 324,860,138 | 0.9657 | 336,398,610 | 41 | 932 | .009258617 |
| A | 309,979,890 | 0.9772 | 317,212,331 | 21 | 365 | .007481550 |
| C | 49,928,510 | 0.9959 | 50,134,060 | 58 | 4,035 | .170783530 |
| C | 49,352,359 | 0.8337 | 59,196,784 | 58 | 2,008 | 1.040426605 |
| C | 46,566,994 | 0.8268 | 56,321,957 | 27 | 400 | .125173875 |
| C | 48,553,468 | 0.9537 | 50,910,630 | 15 | 143 | .017661395 |
| D3 | 59,004,887 | 0.4111 | 143,529,280 | 10 | 473 | 1.121008414 |
| Random Totals: | 1,359,662,570 | 1,490,845,330 | 351 | 10,978 | ||
| Catg D1 Exception Values: | 235,039 | 165,226 | ||||
| Total Test Values (4): | 1,359,897,609 | 1,491,010,556 |
Margin of Error
| Margin of Error Percent: | 6.4908901 |
|---|---|
| Margin of Error Value: | 96,779,856 |
Confidence Interval Values (5)
| Local Test Value: | 1,359,897,609 | (Outside Confidence Interval) |
|---|---|---|
| State Lower Limit: | 1,394,230,700 | (State Test Value minus Margin of Error Percent) |
| State Upper Limit: | 1,587,790,412 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 1,352,423,550 | (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, D3, 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