2011 Confidence Interval Detail
084/Galveston
084-903/High Island ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 4,317,509 | 1.0366 | 4,165,068 | 10 | 121 | .009534186 |
| A | 5,212,410 | 0.8001 | 6,514,698 | 10 | 65 | .109676226 |
| A | 7,820,240 | 1.0569 | 7,399,224 | 10 | 51 | .027300220 |
| A | 6,465,194 | 0.9957 | 6,493,114 | 6 | 21 | .053793217 |
| C | 3,319,586 | 0.4597 | 7,221,201 | 11 | 1,138 | 1.178167632 |
| C | 2,831,862 | 0.7915 | 3,577,842 | 12 | 333 | .713838313 |
| C | 2,772,570 | 1.0651 | 2,603,108 | 10 | 122 | .029159604 |
| C | 2,359,110 | 1.0473 | 2,252,564 | 10 | 40 | .017979105 |
| D3 | 3,954,330 | 1.1221 | 3,524,044 | 15 | 382 | .005824901 |
| G1 | 16,425,030 | 0.9897 | 16,595,968 | 10 | 32 | .030308846 |
| Random Totals: | 55,477,841 | 60,346,831 | 104 | 2,305 | ||
| Catg J Exception Values: | 2,547,849 | 2,722,674 | ||||
| Catg D1 Exception Values: | 366,710 | 440,237 | ||||
| Total Test Values (4): | 58,392,400 | 63,509,742 |
Margin of Error
| Margin of Error Percent: | 8.6544219 |
|---|---|
| Margin of Error Value: | 5,496,401 |
Confidence Interval Values (5)
| State Lower Limit: | 58,013,341 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 58,392,400 | (Within Confidence Interval) |
| State Upper Limit: | 69,006,143 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 63,528,165 | (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