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Dallas County
2022 Confidence Interval Detail
Dallas County
057-912/Irving ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 865,534,610 | 0.8941 | 968,051,236 | 92 | 5,301 | 0.043344936 |
| A | 1,841,204,770 | 0.9475 | 1,943,224,032 | 99 | 8,649 | 0.017211632 |
| A | 3,330,689,160 | 0.9653 | 3,450,418,688 | 100 | 12,065 | 0.010617918 |
| A | 2,939,756,660 | 0.9777 | 3,006,808,489 | 100 | 5,445 | 0.013079273 |
| B | 779,162,330 | 1.0466 | 744,470,027 | 10 | 146 | 0.009842137 |
| B | 762,638,420 | 1.1133 | 685,025,079 | 9 | 40 | 0.022934606 |
| B | 1,037,342,780 | 1.0695 | 969,932,473 | 7 | 31 | 0.002115179 |
| B | 1,400,749,210 | 1.0402 | 1,346,615,276 | 6 | 20 | 0.003123338 |
| C1 | 85,636,350 | 0.6881 | 124,453,350 | 10 | 1,348 | 0.049989045 |
| C1 | 75,260,160 | 0.7804 | 96,437,929 | 10 | 176 | 0.097534907 |
| C1 | 70,253,210 | 0.9243 | 76,006,935 | 8 | 35 | 0.027975619 |
| C1 | 70,199,510 | 0.5375 | 130,603,740 | 4 | 7 | 0.507647917 |
| F1 | 987,143,180 | 0.9412 | 1,048,813,408 | 15 | 919 | 0.026120747 |
| F1 | 964,494,070 | 0.8956 | 1,076,925,045 | 14 | 196 | 0.037759548 |
| F1 | 1,022,764,920 | 1.0075 | 1,015,151,285 | 12 | 62 | 0.002559986 |
| F1 | 1,266,188,780 | 1.0149 | 1,247,599,547 | 7 | 19 | 0.002755774 |
| L1 | 487,646,990 | 1.0353 | 471,019,985 | 11 | 995 | 0.013266018 |
| L1 | 528,685,900 | 1.0277 | 514,436,022 | 12 | 156 | 0.005468897 |
| L1 | 428,006,440 | 1.0404 | 411,386,428 | 8 | 31 | 0.011788034 |
| L1 | 584,615,020 | 1.0135 | 576,799,586 | 5 | 7 | 0.000115856 |
| Random Totals: | 19,527,972,470 | 19,904,178,560 | 539 | 35,648 | ||
| CATG D1 EXCEPTION VALUES: | 99,007 | 93,847 | ||||
| CATG J EXCEPTION VALUES: | 240,697,071 | 253,199,310 | ||||
| Total Test Values | 19,768,768,548 | 20,157,471,717 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 1,007,873,586 |
Confidence Interval Values(5)
| Local Test Value: | 19,768,768,548 | WITHIN CONFIDENCE INTERVAL |
|---|---|---|
| State Lower Limit: | 19,149,598,131 | (State Test Value minus Margin of Error Percent) |
| State Upper Limit: | 21,165,345,303 | (State Test Value plus Margin of Error Percent) |
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, D2, E, F1, G1, G2, or L1 marked as exception properties
(5) Unstudied categories and sub-categories were not included in the Confidence Interval Values