2009 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 | 792,249,617 | 1.0020 | 790,668,280 | 51 | 17,122 | .023799363 |
| A | 721,917,711 | 1.0361 | 696,764,512 | 49 | 9,590 | .018904692 |
| A | 728,664,335 | 1.0103 | 721,235,608 | 65 | 6,610 | .020338866 |
| A | 756,498,594 | 1.0067 | 751,463,787 | 63 | 3,754 | .027510170 |
| F1 | 270,500,138 | 0.9441 | 286,516,405 | 13 | 1,305 | .018375033 |
| F1 | 276,769,595 | 0.9513 | 290,938,290 | 13 | 391 | .010602771 |
| F1 | 279,499,666 | 0.9687 | 288,530,676 | 12 | 134 | .005283340 |
| F1 | 259,231,905 | 0.9633 | 269,108,175 | 10 | 34 | .005518582 |
| L1 | 99,576,753 | 1.0508 | 94,762,803 | 7 | 1,255 | .058876171 |
| L1 | 103,945,568 | 1.0522 | 98,788,793 | 9 | 283 | .009234005 |
| L1 | 98,398,104 | 1.1089 | 88,734,876 | 7 | 83 | .045045322 |
| L1 | 99,561,543 | 1.0197 | 97,638,073 | 6 | 19 | .002142182 |
| Random Totals: | 4,486,813,529 | 4,475,150,278 | 305 | 40,580 | ||
| Catg D1 Exception Values: | 5,787,154 | 5,748,588 | ||||
| Total Test Values (4): | 4,492,600,683 | 4,480,898,866 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 224,044,943 |
Confidence Interval Values (5)
| State Lower Limit: | 4,256,853,923 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 4,492,600,683 | (Within Confidence Interval) |
| State Upper Limit: | 4,704,943,809 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 4,926,842,237 | (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