2008 Confidence Interval Detail
057/Dallas
057-909/Garland ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 2,306,035,740 | 1.0109 | 2,281,170,976 | 36 | 24,233 | .006072891 |
| A | 2,324,844,270 | 0.9793 | 2,373,985,776 | 44 | 18,781 | .002238147 |
| A | 2,388,575,190 | 1.0073 | 2,371,264,956 | 42 | 14,914 | .004247827 |
| A | 2,518,175,210 | 0.9825 | 2,563,028,204 | 45 | 10,181 | .004412153 |
| B | 151,156,170 | 1.0194 | 148,279,547 | 15 | 905 | .005184072 |
| B | 138,351,420 | 0.9606 | 144,026,046 | 6 | 53 | .009713450 |
| B | 179,287,890 | 0.9484 | 189,042,482 | 5 | 25 | .001122020 |
| B | 213,753,330 | 0.9762 | 218,964,690 | 4 | 12 | .002301411 |
| C | 67,871,490 | 0.8886 | 76,380,250 | 13 | 1,619 | .050931005 |
| C | 72,733,300 | 0.9206 | 79,006,409 | 8 | 402 | .029892164 |
| C | 76,718,990 | 1.0690 | 71,767,063 | 7 | 129 | .015610199 |
| C | 91,536,680 | 0.9800 | 93,404,776 | 6 | 46 | .002451524 |
| F1 | 610,271,170 | 0.8961 | 681,030,209 | 17 | 1,247 | .031381408 |
| F1 | 607,520,610 | 0.8579 | 708,148,514 | 14 | 330 | .039764068 |
| F1 | 594,357,190 | 0.8934 | 665,275,565 | 11 | 121 | .030699606 |
| F1 | 614,196,800 | 0.9114 | 673,904,762 | 9 | 41 | .018078608 |
| L1 | 237,365,340 | 0.9885 | 240,126,798 | 7 | 1,518 | .021810413 |
| L1 | 254,475,280 | 1.0539 | 241,460,556 | 7 | 256 | .003978576 |
| L1 | 217,808,600 | 1.0620 | 205,092,844 | 7 | 52 | .018834328 |
| L1 | 252,187,030 | 1.0259 | 245,820,285 | 5 | 17 | .001305515 |
| Random Totals: | 13,917,221,700 | 14,271,180,708 | 308 | 74,882 | ||
| Catg D1 Exception Values: | 421,918 | 409,674 | ||||
| Total Test Values (4): | 13,917,643,618 | 14,271,590,382 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 713,579,519 |
Confidence Interval Values (5)
| State Lower Limit: | 13,558,010,863 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 13,917,643,618 | (Within Confidence Interval) |
| State Upper Limit: | 14,985,169,901 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 14,152,036,786 | (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