2010 Confidence Interval Detail
254/Zavala
254-901/Crystal City ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 11,930,112 | 0.7567 | 15,765,973 | 10 | 804 | .124633679 |
| A | 11,926,687 | 0.9638 | 12,374,649 | 10 | 467 | .017910019 |
| A | 12,260,168 | 1.0111 | 12,125,574 | 10 | 329 | .050009084 |
| A | 11,901,416 | 1.1665 | 10,202,671 | 9 | 167 | .027928521 |
| D3 | 28,160,176 | 1.0489 | 26,847,341 | 20 | 2,180 | .027484374 |
| F1 | 3,375,436 | 0.9650 | 3,497,861 | 9 | 82 | .015805989 |
| F1 | 3,478,545 | 0.9450 | 3,681,000 | 7 | 29 | .032003639 |
| F1 | 3,378,359 | 0.9580 | 3,526,471 | 5 | 9 | .008073951 |
| G1 | 9,441,271 | 0.9984 | 9,456,401 | 8 | 46 | .004562369 |
| G1 | 10,586,480 | 1.0082 | 10,500,377 | 6 | 13 | .151724786 |
| G1 | 10,077,165 | 1.0643 | 9,468,350 | 3 | 5 | .027654468 |
| Random Totals: | 116,515,815 | 117,446,668 | 97 | 4,131 | ||
| Catg J Exception Values: | 9,079,207 | 9,935,716 | ||||
| Catg D1 Exception Values: | 27,652,077 | 37,563,201 | ||||
| Catg F1 Exception Values: | 3,164,461 | 3,073,534 | ||||
| Catg G1 Exception Values: | 7,493,344 | 7,535,017 | ||||
| Total Test Values (4): | 163,904,904 | 175,554,136 |
Margin of Error
| Margin of Error Percent: | 5.0000001 |
|---|---|
| Margin of Error Value: | 8,777,707 |
Confidence Interval Values (5)
| Local Test Value: | 163,904,904 | (Outside Confidence Interval) |
|---|---|---|
| State Lower Limit: | 166,776,429 | (State Test Value minus Margin of Error Percent) |
| State Upper Limit: | 184,331,843 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 196,003,064 | (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