2007 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 | 858,925,223 | 0.9736 | 882,215,718 | 60 | 3,789 | .009820396 |
| A | 857,781,384 | 0.9814 | 874,038,500 | 51 | 2,019 | .012177222 |
| A | 858,663,773 | 0.9905 | 866,899,317 | 67 | 1,287 | .012445912 |
| A | 857,969,388 | 1.0093 | 850,063,795 | 37 | 648 | .003447938 |
| F1 | 219,268,639 | 0.9247 | 237,124,082 | 8 | 246 | .040939567 |
| F1 | 224,647,810 | 0.9285 | 241,947,022 | 6 | 39 | .016578722 |
| F1 | 212,448,033 | 1.0087 | 210,615,677 | 5 | 14 | .045943262 |
| L1 | 72,331,330 | 1.1318 | 63,908,226 | 7 | 529 | .016997119 |
| L1 | 73,490,523 | 1.1082 | 66,315,217 | 6 | 76 | .004295164 |
| L1 | 71,195,705 | 1.0412 | 68,378,510 | 5 | 14 | .004833646 |
| L1 | 71,552,270 | 1.0792 | 66,301,214 | 3 | 4 | .024088782 |
| Random Totals: | 4,378,274,078 | 4,427,807,278 | 255 | 8,665 | ||
| Catg F1 Exception Values: | 143,422,700 | 154,143,500 | ||||
| Total Test Values (4): | 4,521,696,778 | 4,581,950,778 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 229,097,539 |
Confidence Interval Values (5)
| State Lower Limit: | 4,352,853,239 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 4,521,696,778 | (Within Confidence Interval) |
| State Upper Limit: | 4,811,048,317 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 4,414,736,091 | (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