2008 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 | 8,969,271,770 | 1.0108 | 8,873,438,633 | 69 | 99,827 | .006454301 |
| A | 9,551,520,680 | 0.9922 | 9,626,608,224 | 95 | 47,102 | .005007303 |
| A | 9,959,003,180 | 0.9898 | 10,061,631,825 | 95 | 22,882 | .004148897 |
| A | 11,575,229,330 | 0.9626 | 12,024,962,944 | 99 | 8,711 | .022151809 |
| B | 1,768,920,640 | 1.0879 | 1,625,995,625 | 14 | 5,822 | .021926672 |
| B | 1,684,228,580 | 1.0336 | 1,629,478,115 | 14 | 387 | .002028825 |
| B | 1,994,270,220 | 0.9885 | 2,017,471,138 | 12 | 156 | .005956217 |
| B | 1,952,384,130 | 0.9700 | 2,012,767,144 | 6 | 56 | .004071938 |
| C | 491,591,630 | 0.8546 | 575,230,084 | 16 | 12,343 | .083250420 |
| C | 544,793,920 | 0.8686 | 627,209,210 | 19 | 1,681 | .075189271 |
| C | 707,166,500 | 0.8790 | 804,512,514 | 9 | 640 | .025142036 |
| C | 953,166,790 | 1.0619 | 897,605,038 | 8 | 178 | .013163548 |
| F1 | 6,124,968,540 | 0.8188 | 7,480,420,787 | 16 | 6,389 | .018894371 |
| F1 | 6,235,623,680 | 0.8478 | 7,355,064,496 | 13 | 1,138 | .007374235 |
| F1 | 6,236,686,290 | 0.8593 | 7,257,868,370 | 12 | 274 | .007303242 |
| F1 | 6,157,411,970 | 0.8897 | 6,920,773,261 | 12 | 60 | .015627779 |
| L1 | 2,330,254,430 | 1.1605 | 2,007,974,520 | 7 | 9,456 | .022762275 |
| L1 | 2,297,968,740 | 1.0264 | 2,238,862,763 | 7 | 1,301 | .002213269 |
| L1 | 2,320,477,520 | 1.0275 | 2,258,372,282 | 7 | 369 | .003347295 |
| L1 | 2,559,774,810 | 0.9737 | 2,628,915,282 | 6 | 98 | .004262988 |
| Random Totals: | 84,414,713,350 | 88,925,162,255 | 536 | 218,870 | ||
| Catg D1 Exception Values: | 3,385,510 | 3,956,764 | ||||
| Total Test Values (4): | 84,418,098,860 | 88,929,119,019 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 4,446,455,951 |
Confidence Interval Values (5)
| Local Test Value: | 84,418,098,860 | (Outside Confidence Interval) |
|---|---|---|
| State Lower Limit: | 84,482,663,068 | (State Test Value minus Margin of Error Percent) |
| State Upper Limit: | 93,375,574,970 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 82,284,285,393 | (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