2009 Confidence Interval Detail
015/Bexar
015-901/Alamo Heights ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 951,856,739 | 1.0143 | 938,437,089 | 70 | 3,915 | .012497910 |
| A | 910,313,350 | 0.9826 | 926,433,289 | 70 | 2,034 | .007705883 |
| A | 953,210,207 | 0.9833 | 969,399,173 | 34 | 1,345 | .003295383 |
| A | 963,154,913 | 1.0009 | 962,288,853 | 28 | 645 | .009481020 |
| F1 | 244,486,065 | 0.8878 | 275,384,169 | 9 | 249 | .057632990 |
| F1 | 222,077,967 | 0.9781 | 227,050,370 | 6 | 35 | .018039180 |
| F1 | 251,055,844 | 0.8764 | 286,462,624 | 5 | 16 | .006788751 |
| F1 | 257,958,387 | 0.9170 | 281,306,856 | 4 | 7 | .011774214 |
| L1 | 83,358,711 | 1.0597 | 78,662,556 | 7 | 474 | .006102582 |
| L1 | 76,932,365 | 1.0294 | 74,735,152 | 6 | 59 | .005556327 |
| L1 | 118,871,546 | 0.9941 | 119,577,051 | 6 | 15 | .000160074 |
| Random Totals: | 5,033,276,094 | 5,139,737,182 | 245 | 8,794 | ||
| Total Test Values (4): | 5,033,276,094 | 5,139,737,182 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 256,986,859 |
Confidence Interval Values (5)
| State Lower Limit: | 4,882,750,323 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 5,033,276,094 | (Within Confidence Interval) |
| State Upper Limit: | 5,396,724,041 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 4,969,218,681 | (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