2009 Confidence Interval Detail
057/Dallas
057-905/Dallas ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 8,884,295,900 | 0.9873 | 8,998,577,839 | 100 | 97,115 | .024561525 |
| A | 9,905,068,640 | 0.9524 | 10,400,114,070 | 100 | 43,703 | .011216898 |
| A | 10,073,556,560 | 0.9519 | 10,582,578,590 | 100 | 20,510 | .011325532 |
| A | 10,125,422,430 | 0.9651 | 10,491,578,520 | 100 | 6,629 | .017203272 |
| B | 1,874,815,320 | 0.9200 | 2,037,842,739 | 16 | 5,574 | .048794771 |
| B | 1,674,516,020 | 1.1014 | 1,520,352,297 | 6 | 347 | .047374928 |
| B | 1,891,358,790 | 0.9891 | 1,912,201,790 | 8 | 130 | .003470893 |
| B | 1,765,123,240 | 0.9934 | 1,776,850,453 | 6 | 47 | .001703762 |
| C | 667,411,650 | 1.1028 | 605,197,361 | 7 | 10,513 | .009005468 |
| C | 607,256,540 | 0.9547 | 636,070,535 | 7 | 1,097 | .069198011 |
| C | 598,497,020 | 1.0053 | 595,341,709 | 7 | 306 | .002705454 |
| C | 545,291,920 | 1.0089 | 540,481,633 | 6 | 79 | .003360129 |
| F1 | 6,178,588,000 | 0.9815 | 6,295,046,358 | 13 | 6,239 | .035386072 |
| F1 | 5,873,446,510 | 0.9328 | 6,296,576,447 | 12 | 1,054 | .006821603 |
| F1 | 5,615,638,110 | 0.9048 | 6,206,496,585 | 13 | 248 | .011769083 |
| F1 | 4,617,953,170 | 0.9249 | 4,992,921,581 | 10 | 47 | .001783018 |
| L1 | 2,343,432,570 | 1.1133 | 2,104,942,576 | 7 | 9,056 | .018380628 |
| L1 | 2,359,084,920 | 0.9896 | 2,383,877,243 | 7 | 1,264 | .009692870 |
| L1 | 2,516,960,990 | 1.0902 | 2,308,714,906 | 7 | 368 | .008097624 |
| L1 | 2,472,400,500 | 1.0040 | 2,462,550,299 | 6 | 83 | .000370280 |
| Random Totals: | 80,590,118,800 | 83,148,313,531 | 538 | 204,409 | ||
| Catg D1 Exception Values: | 3,785,181 | 4,329,896 | ||||
| Total Test Values (4): | 80,593,903,981 | 83,152,643,427 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 4,157,632,171 |
Confidence Interval Values (5)
| State Lower Limit: | 78,995,011,256 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 80,593,903,981 | (Within Confidence Interval) |
| State Upper Limit: | 87,310,275,598 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 78,626,228,844 | (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