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227/Travis
2018 Confidence Interval Detail
227/Travis
227-901/Austin ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 14,180,086,530 | 0.9589 | 14,787,867,901 | 846 | 54,602 | .022089258 |
| A | 17,122,194,081 | 0.9631 | 17,778,210,031 | 923 | 46,124 | .022855169 |
| A | 16,607,685,407 | 0.9566 | 17,361,159,740 | 876 | 30,860 | .019351142 |
| A | 17,910,386,817 | 0.9532 | 18,789,746,975 | 784 | 16,743 | .044514635 |
| B | 5,778,384,687 | 0.9730 | 5,938,730,408 | 186 | 8,257 | .011835247 |
| B | 5,375,882,304 | 0.9641 | 5,576,062,964 | 10 | 228 | .000962635 |
| B | 5,009,153,563 | 0.9817 | 5,102,529,859 | 9 | 103 | .001475613 |
| B | 6,056,072,829 | 0.9735 | 6,220,927,405 | 8 | 71 | .000362734 |
| C1 | 318,682,623 | 0.8285 | 384,650,118 | 43 | 1,746 | .091585365 |
| C1 | 355,316,320 | 0.8361 | 424,968,688 | 19 | 719 | .034243976 |
| C1 | 389,230,961 | 0.9548 | 407,657,060 | 10 | 266 | .041622331 |
| C1 | 315,619,861 | 0.8522 | 370,358,908 | 8 | 41 | .147914095 |
| E | 264,291,392 | 0.8978 | 294,376,690 | 15 | 761 | .113146709 |
| F1 | 8,254,560,970 | 0.9610 | 8,589,553,559 | 17 | 4,623 | .011813632 |
| F1 | 8,163,385,175 | 0.9560 | 8,539,105,832 | 10 | 913 | .001307764 |
| F1 | 8,449,000,095 | 0.9482 | 8,910,567,491 | 10 | 260 | .001278837 |
| F1 | 8,903,674,520 | 0.9682 | 9,196,110,845 | 8 | 65 | .001013455 |
| L1 | 926,796,331 | 1.0788 | 859,099,306 | 11 | 6,971 | .055097267 |
| L1 | 954,048,315 | 0.9816 | 971,931,861 | 11 | 1,390 | .002727998 |
| L1 | 952,348,673 | 1.0549 | 902,785,736 | 11 | 376 | .013057405 |
| L1 | 935,196,907 | 1.0200 | 916,859,713 | 10 | 90 | .004636191 |
| Random Totals: | 127,221,998,361 | 132,323,261,090 | 3,825 | 175,209 | ||
| Catg J Exception Values: | 4,344,159 | 4,652,139 | ||||
| Catg D1 Exception Values: | 1,489,121 | 854,101 | ||||
| Total Test Values (4): | 127,227,831,641 | 132,328,767,330 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 6,616,438,366 |
Confidence Interval Values (5)
| State Lower Limit: | 125,712,328,964 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 127,227,831,641 | (Within Confidence Interval) |
| State Upper Limit: | 138,945,205,696 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 121,722,822,653 | (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