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220/Tarrant
2017 Confidence Interval Detail
220/Tarrant
220-907/Keller ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 2,927,763,118 | 0.9507 | 3,079,586,745 | 516 | 16,923 | .007270998 |
| A | 3,961,626,056 | 0.9638 | 4,110,423,382 | 496 | 15,892 | .005872161 |
| A | 3,959,043,885 | 0.9721 | 4,072,671,418 | 489 | 10,690 | .006042277 |
| A | 3,766,391,182 | 0.9763 | 3,857,821,553 | 300 | 5,323 | .007772228 |
| B | 53,438,336 | 0.8563 | 62,406,091 | 5 | 4 | .008408539 |
| B | 143,034,946 | 0.9712 | 147,276,509 | 5 | 6 | .005370256 |
| B | 194,400,000 | 0.9960 | 195,180,723 | 4 | 6 | .020269433 |
| C1 | 54,332,649 | 0.5240 | 103,688,261 | 13 | 404 | .084389175 |
| C1 | 51,456,483 | 0.5972 | 86,162,899 | 11 | 138 | .174113480 |
| C1 | 67,713,473 | 0.8468 | 79,963,950 | 11 | 89 | .119047378 |
| C1 | 88,110,258 | 0.9519 | 92,562,515 | 9 | 34 | .011413837 |
| F1 | 450,959,878 | 0.8522 | 529,171,413 | 11 | 411 | .050795391 |
| F1 | 517,804,893 | 0.9177 | 564,242,010 | 9 | 172 | .086128553 |
| F1 | 594,914,502 | 0.8718 | 682,397,915 | 8 | 63 | .027509528 |
| F1 | 542,630,426 | 0.8872 | 611,621,310 | 5 | 11 | .017197124 |
| L1 | 151,761,812 | 1.0829 | 140,143,884 | 11 | 823 | .048470283 |
| L1 | 167,602,495 | 1.0524 | 159,257,407 | 10 | 156 | .011573056 |
| L1 | 240,853,747 | 0.9986 | 241,191,415 | 7 | 44 | .001923991 |
| Random Totals: | 17,933,838,139 | 18,815,769,400 | 1,920 | 51,189 | ||
| Catg D1 Exception Values: | 305,472 | 136,947 | ||||
| Catg B Exception Values: | 177,674,683 | 184,917,127 | ||||
| Catg L1 Exception Values: | 115,631,337 | 107,983,314 | ||||
| Total Test Values (4): | 18,227,449,631 | 19,108,806,788 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 955,440,339 |
Confidence Interval Values (5)
| State Lower Limit: | 18,153,366,449 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 18,227,449,631 | (Within Confidence Interval) |
| State Upper Limit: | 20,064,247,127 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 16,832,081,737 | (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