2011 Confidence Interval Detail
061/Denton
057-903/Carrollton-Farmers Branch ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 429,597,403 | 0.9880 | 434,815,185 | 49 | 3,326 | .005399141 |
| A | 444,842,432 | 1.0249 | 434,034,961 | 56 | 2,918 | .005526482 |
| A | 453,049,474 | 1.0016 | 452,325,753 | 68 | 2,449 | .005861396 |
| A | 434,981,866 | 0.9952 | 437,079,849 | 41 | 1,722 | .005648410 |
| B | 115,981,704 | 0.8374 | 138,502,154 | 8 | 17 | .006853689 |
| B | 187,537,988 | 0.8492 | 220,840,777 | 7 | 20 | .020263659 |
| B | 183,545,524 | 0.7669 | 239,334,364 | 6 | 14 | .036575593 |
| B | 20,114,921 | 0.7837 | 25,666,608 | 4 | 1 | .016400604 |
| F1 | 63,940,165 | 0.9481 | 67,440,317 | 11 | 82 | .017702803 |
| F1 | 75,714,345 | 0.9851 | 76,859,552 | 10 | 40 | .010801745 |
| F1 | 68,287,932 | 0.9218 | 74,081,072 | 9 | 20 | .015690033 |
| F1 | 72,819,464 | 0.9401 | 77,459,275 | 5 | 9 | .006367890 |
| Random Totals: | 2,550,413,218 | 2,678,439,867 | 274 | 10,618 | ||
| Total Test Values (4): | 2,550,413,218 | 2,678,439,867 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 133,921,993 |
Confidence Interval Values (5)
| State Lower Limit: | 2,544,517,874 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 2,550,413,218 | (Within Confidence Interval) |
| State Upper Limit: | 2,812,361,860 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 2,709,868,850 | (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