2009 Confidence Interval Detail
015/Bexar
015-909/Somerset ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 41,263,980 | 0.9941 | 41,508,882 | 12 | 807 | .033743401 |
| A | 37,854,001 | 0.9668 | 39,153,911 | 12 | 423 | .059647531 |
| A | 39,239,436 | 1.0056 | 39,020,919 | 12 | 284 | .025331114 |
| A | 31,874,581 | 1.0013 | 31,833,198 | 11 | 133 | .007742076 |
| C | 3,620,450 | 1.2299 | 2,943,695 | 7 | 402 | .027853197 |
| C | 3,522,140 | 0.8108 | 4,344,031 | 7 | 164 | .026501100 |
| C | 3,247,730 | 1.1540 | 2,814,324 | 7 | 106 | .015869644 |
| C | 3,239,343 | 1.0472 | 3,093,337 | 7 | 47 | .018439248 |
| D3 | 50,932,609 | 1.0345 | 49,234,035 | 20 | 1,441 | .031205056 |
| F1 | 5,512,463 | 0.9806 | 5,621,520 | 6 | 60 | .017475501 |
| F1 | 5,803,928 | 0.9626 | 6,029,429 | 6 | 28 | .033712186 |
| F1 | 5,118,310 | 0.9379 | 5,457,202 | 5 | 13 | .037438234 |
| F1 | 6,938,970 | 1.0254 | 6,767,086 | 3 | 6 | .036234355 |
| Random Totals: | 238,167,941 | 237,821,569 | 115 | 3,914 | ||
| Catg D1 Exception Values: | 1,939,172 | 2,132,426 | ||||
| Total Test Values (4): | 240,107,113 | 239,953,995 |
Margin of Error
| Margin of Error Percent: | 5.0000001 |
|---|---|
| Margin of Error Value: | 11,997,700 |
Confidence Interval Values (5)
| State Lower Limit: | 227,956,295 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 240,107,113 | (Within Confidence Interval) |
| State Upper Limit: | 251,951,695 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 240,623,858 | (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