2009 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 | 289,300,731 | 0.9700 | 298,248,176 | 41 | 1,803 | .025971554 |
| A | 252,845,337 | 1.0283 | 245,886,742 | 30 | 1,026 | .015283507 |
| A | 273,530,893 | 0.9941 | 275,154,303 | 17 | 689 | .013600911 |
| A | 310,670,302 | 0.9353 | 332,161,127 | 15 | 323 | .008528894 |
| C | 46,753,726 | 1.0772 | 43,403,013 | 16 | 3,792 | .031865517 |
| C | 50,071,587 | 1.0110 | 49,526,792 | 34 | 2,123 | .016616225 |
| C | 55,499,342 | 0.9372 | 59,218,248 | 15 | 476 | .014527767 |
| C | 73,205,449 | 0.9358 | 78,227,665 | 14 | 188 | .015271044 |
| Random Totals: | 1,351,877,367 | 1,381,826,066 | 182 | 10,420 | ||
| Catg D1 Exception Values: | 237,921 | 147,736 | ||||
| Total Test Values (4): | 1,352,115,288 | 1,381,973,802 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 69,098,690 |
Confidence Interval Values (5)
| State Lower Limit: | 1,312,875,112 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 1,352,115,288 | (Within Confidence Interval) |
| State Upper Limit: | 1,451,072,492 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 1,472,491,727 | (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