2008 Confidence Interval Detail
031/Cameron
031-901/Brownsville ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 757,492,559 | 0.9918 | 763,755,353 | 44 | 16,672 | .023222063 |
| A | 757,925,487 | 1.0507 | 721,352,895 | 43 | 9,957 | .024691995 |
| A | 735,840,424 | 1.0302 | 714,269,486 | 44 | 6,713 | .023778091 |
| A | 764,193,688 | 0.9763 | 782,744,738 | 43 | 3,807 | .027894516 |
| C | 53,493,002 | 0.9891 | 54,082,501 | 58 | 3,432 | .020519448 |
| C | 57,218,239 | 0.9975 | 57,361,643 | 21 | 1,610 | .050039787 |
| C | 59,982,005 | 1.0049 | 59,689,526 | 9 | 523 | .006122869 |
| C | 65,289,246 | 0.9836 | 66,377,843 | 7 | 144 | .001547271 |
| F1 | 257,879,085 | 0.9641 | 267,481,677 | 19 | 1,257 | .095712670 |
| F1 | 260,188,349 | 0.9404 | 276,678,380 | 11 | 377 | .029321542 |
| F1 | 263,775,081 | 0.9307 | 283,415,796 | 7 | 128 | .005311475 |
| F1 | 256,774,643 | 0.9050 | 283,728,887 | 6 | 33 | .024196501 |
| L1 | 97,307,894 | 1.0863 | 89,577,367 | 7 | 1,253 | .039567410 |
| L1 | 109,577,263 | 1.0669 | 102,706,217 | 7 | 293 | .024797325 |
| L1 | 106,794,966 | 1.0480 | 101,903,594 | 6 | 76 | .002513003 |
| L1 | 80,090,550 | 1.0026 | 79,882,855 | 5 | 14 | .001483155 |
| Random Totals: | 4,683,822,481 | 4,705,008,758 | 337 | 46,289 | ||
| Catg D1 Exception Values: | 5,054,658 | 5,718,926 | ||||
| Total Test Values (4): | 4,688,877,139 | 4,710,727,684 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 235,536,384 |
Confidence Interval Values (5)
| State Lower Limit: | 4,475,191,300 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 4,688,877,139 | (Within Confidence Interval) |
| State Upper Limit: | 4,946,264,068 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 4,873,671,841 | (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