2006 Confidence Interval Detail
226/Tom Green
226-906/Wall ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 20,601,198 | 0.9503 | 21,678,626 | 8 | 342 | .000178519 |
| A | 20,673,646 | 0.9637 | 21,452,367 | 7 | 205 | .000226005 |
| A | 20,563,045 | 0.9818 | 20,944,230 | 9 | 142 | .000154882 |
| A | 20,566,225 | 0.9882 | 20,811,804 | 8 | 74 | .001111757 |
| D3 | 25,274,630 | 0.9670 | 26,137,156 | 20 | 2,456 | .000941467 |
| Random Totals: | 107,678,744 | 111,024,183 | 52 | 3,219 | ||
| Catg D1 Exception Values: | 30,380,440 | 30,869,914 | ||||
| Total Test Values (4): | 138,059,184 | 141,894,097 |
Margin of Error
| Margin of Error Percent: | 5.0000001 |
|---|---|
| Margin of Error Value: | 7,094,705 |
Confidence Interval Values (5)
| State Lower Limit: | 134,799,392 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 138,059,184 | (Within Confidence Interval) |
| State Upper Limit: | 148,988,802 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 162,880,100 | (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