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Tarrant County
2019 Confidence Interval Detail
Tarrant County
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 | 2,581,082,669 | 0.9664 | 2,670,822,298 | 238 | 18441 | 0.008679357 |
| A | 3,885,826,644 | 0.9831 | 3,952,626,024 | 252 | 21248 | 0.005749204 |
| A | 5,066,212,788 | 1.0063 | 5,034,495,467 | 246 | 22021 | 0.005651935 |
| A | 5,304,056,721 | 1.0151 | 5,225,156,853 | 250 | 15605 | 0.009045878 |
| B | 1,007,454,000 | 0.9588 | 1,050,744,681 | 64 | 1617 | 0.035385919 |
| B | 983,873,749 | 0.9562 | 1,028,941,382 | 15 | 58 | 0.020757137 |
| B | 1,440,752,961 | 1.0723 | 1,343,609,961 | 12 | 52 | 0.052871412 |
| B | 1,166,759,435 | 1.0582 | 1,102,588,769 | 8 | 23 | 0.007678692 |
| C1 | 71,383,565 | 0.9618 | 74,218,720 | 14 | 691 | 0.049325157 |
| C1 | 63,722,917 | 0.6392 | 99,691,672 | 9 | 164 | 0.183899752 |
| C1 | 55,668,828 | 0.8807 | 63,209,751 | 9 | 66 | 0.069603648 |
| C1 | 66,234,466 | 1.0298 | 64,317,796 | 7 | 25 | 0.160126289 |
| F1 | 1,671,034,538 | 0.8902 | 1,877,145,066 | 29 | 1478 | 0.142306057 |
| F1 | 1,927,638,946 | 1.0605 | 1,817,669,916 | 17 | 502 | 0.027111941 |
| F1 | 1,939,481,823 | 0.9441 | 2,054,318,211 | 10 | 186 | 0.065529576 |
| F1 | 1,970,632,240 | 0.8216 | 2,398,529,990 | 9 | 53 | 0.063183724 |
| L1 | 528,576,111 | 1.0414 | 507,563,003 | 12 | 1288 | 0.024241712 |
| L1 | 613,814,977 | 1.0268 | 597,794,095 | 13 | 212 | 0.009945165 |
| L1 | 700,634,865 | 1.0351 | 676,876,500 | 9 | 53 | 0.005480908 |
| L1 | 464,209,953 | 1.0131 | 458,207,436 | 6 | 8 | 0.000522701 |
| Random Totals: | 31,509,052,196 | 32,098,527,591 | 1,229 | 83,791 | ||
| CATG D1 EXCEPTION VALUES: | 48,562 | 34,926 | ||||
| CATG J EXCEPTION VALUES: | 63,174,120 | 66,945,062 | ||||
| Total Test Values(2) | 31,572,274,878 | 32,165,507,579 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 1,608,275,379 |
Confidence Interval Values(5)
| Local Test Value: | 31,572,274,878 | WITHIN CONFIDENCE INTERVAL |
|---|---|---|
| State Lower Limit: | 30,557,232,200 | (State Test Value minus Margin of Error Percent) |
| State Upper Limit: | 33,773,782,958 | (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