2009 Confidence Interval Detail
015/Bexar
015-912/Southwest ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 238,208,959 | 1.1158 | 213,487,147 | 45 | 4,194 | .109284243 |
| A | 234,592,885 | 1.0508 | 223,251,699 | 43 | 2,944 | .045682593 |
| A | 236,937,817 | 1.0813 | 219,123,108 | 55 | 2,156 | .029646355 |
| A | 181,773,551 | 1.0432 | 174,246,119 | 51 | 1,096 | .014480559 |
| D3 | 115,585,415 | 1.0051 | 114,998,921 | 10 | 2,379 | .022975039 |
| F1 | 31,676,234 | 0.8993 | 35,223,211 | 8 | 184 | .020488833 |
| F1 | 36,912,189 | 0.8955 | 41,219,642 | 6 | 58 | .004258685 |
| F1 | 26,204,825 | 0.9785 | 26,780,608 | 7 | 21 | .002048696 |
| F1 | 39,193,160 | 0.9341 | 41,958,206 | 5 | 13 | .009869008 |
| L1 | 19,936,589 | 1.0509 | 18,970,967 | 7 | 116 | .021584141 |
| L1 | 17,233,984 | 0.9969 | 17,287,575 | 6 | 22 | .002994578 |
| L1 | 18,704,006 | 1.0187 | 18,360,662 | 2 | 6 | .000873127 |
| L1 | 36,149,900 | 1.2064 | 29,965,103 | 2 | 6 | .001771958 |
| Random Totals: | 1,233,109,514 | 1,174,872,968 | 247 | 13,195 | ||
| Catg D1 Exception Values: | 4,601,716 | 5,049,928 | ||||
| Total Test Values (4): | 1,237,711,230 | 1,179,922,896 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 58,996,145 |
Confidence Interval Values (5)
| State Lower Limit: | 1,120,926,751 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 1,237,711,230 | (Within Confidence Interval) |
| State Upper Limit: | 1,238,919,041 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 1,555,117,063 | (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