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220/Tarrant
2017 Confidence Interval Detail
220/Tarrant
220-901/Arlington ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 2,452,237,816 | 0.8961 | 2,736,567,142 | 431 | 21,684 | .022838175 |
| A | 3,133,858,037 | 0.9327 | 3,359,985,029 | 437 | 20,310 | .013341856 |
| A | 3,862,555,133 | 0.9594 | 4,026,011,187 | 417 | 19,400 | .010669711 |
| A | 4,188,044,642 | 0.9761 | 4,290,589,737 | 373 | 13,187 | .014218907 |
| B | 690,513,449 | 0.9794 | 705,037,216 | 71 | 1,961 | .708407575 |
| B | 578,001,352 | 1.0700 | 540,188,179 | 14 | 53 | .032947708 |
| B | 1,060,033,135 | 1.0691 | 991,519,161 | 10 | 62 | .028263369 |
| B | 1,307,619,357 | 1.0754 | 1,215,937,658 | 8 | 34 | .004200648 |
| C1 | 68,914,954 | 0.6116 | 112,679,781 | 15 | 629 | 1.144352423 |
| C1 | 72,601,514 | 0.7872 | 92,227,533 | 12 | 181 | .106559614 |
| C1 | 63,647,753 | 0.9378 | 67,869,218 | 9 | 69 | .020115634 |
| C1 | 87,771,109 | 0.9539 | 92,012,904 | 7 | 30 | .004581955 |
| F1 | 1,290,888,360 | 0.8782 | 1,469,925,256 | 29 | 1,591 | .066159419 |
| F1 | 1,471,816,576 | 0.9241 | 1,592,702,712 | 11 | 537 | .045861918 |
| F1 | 1,484,286,342 | 0.8435 | 1,759,675,568 | 10 | 204 | .048196982 |
| F1 | 1,919,447,859 | 0.8773 | 2,187,903,635 | 9 | 71 | .009002524 |
| L1 | 786,353,947 | 1.0608 | 741,283,887 | 12 | 2,089 | .006688383 |
| L1 | 771,740,457 | 1.0127 | 762,062,266 | 12 | 290 | .005376664 |
| L1 | 788,239,087 | 1.0597 | 743,832,299 | 11 | 78 | .011841863 |
| L1 | 878,616,674 | 1.0118 | 868,369,909 | 8 | 22 | .000484250 |
| Random Totals: | 26,957,187,553 | 28,356,380,277 | 1,906 | 82,482 | ||
| Catg J Exception Values: | 64,908,550 | 55,948,859 | ||||
| Catg D1 Exception Values: | 64,203 | 51,396 | ||||
| Total Test Values (4): | 27,022,160,306 | 28,412,380,532 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 1,420,619,026 |
Confidence Interval Values (5)
| State Lower Limit: | 26,991,761,506 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 27,022,160,306 | (Within Confidence Interval) |
| State Upper Limit: | 29,832,999,558 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 25,301,288,711 | (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, 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
(6) Includes local value of unstudied property categories and sub-categories