2006 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 | 6,707,012,963 | 0.9788 | 6,852,281,327 | 101 | 49,819 | .003775001 |
| A | 6,710,312,219 | 0.9897 | 6,780,147,741 | 99 | 33,181 | .005061055 |
| A | 6,704,814,811 | 0.9852 | 6,805,536,755 | 104 | 22,056 | .002905567 |
| A | 6,705,517,420 | 0.9784 | 6,853,554,191 | 91 | 10,887 | .009327465 |
| B | 1,469,359,463 | 0.8611 | 1,706,374,943 | 46 | 7,913 | .053998705 |
| B | 1,469,663,080 | 0.7868 | 1,867,899,187 | 17 | 1,524 | .089483231 |
| B | 1,476,136,567 | 1.0180 | 1,450,035,920 | 15 | 154 | .004895606 |
| B | 1,461,591,318 | 0.9969 | 1,466,136,341 | 16 | 54 | .005194633 |
| C | 154,397,324 | 0.9848 | 156,780,386 | 49 | 4,627 | .000791548 |
| C | 154,704,935 | 0.9962 | 155,295,056 | 40 | 1,290 | .004963252 |
| C | 154,104,953 | 0.9776 | 157,635,999 | 12 | 448 | .000718723 |
| C | 154,133,275 | 0.9911 | 155,517,380 | 8 | 111 | .003198567 |
| F1 | 2,811,225,095 | 0.9938 | 2,828,763,428 | 25 | 3,875 | .036032970 |
| F1 | 2,816,461,055 | 0.9870 | 2,853,557,300 | 19 | 882 | .008653810 |
| F1 | 2,806,935,447 | 0.9647 | 2,909,645,949 | 15 | 277 | .053885775 |
| F1 | 2,809,686,187 | 0.9473 | 2,965,994,075 | 15 | 79 | .013114310 |
| L1 | 695,715,255 | 0.9659 | 720,276,690 | 7 | 6,170 | .003131711 |
| L1 | 696,140,667 | 0.9378 | 742,312,505 | 7 | 1,196 | .001659192 |
| L1 | 698,561,387 | 0.9747 | 716,693,739 | 7 | 381 | .006581671 |
| L1 | 692,437,685 | 0.9814 | 705,561,122 | 7 | 110 | .001191084 |
| Random Totals: | 47,348,911,106 | 48,850,000,034 | 700 | 145,034 | ||
| Catg D1 Exception Values: | 1,962,720 | 2,109,641 | ||||
| Total Test Values (4): | 47,350,873,826 | 48,852,109,675 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 2,442,605,484 |
Confidence Interval Values (5)
| State Lower Limit: | 46,409,504,191 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 47,350,873,826 | (Within Confidence Interval) |
| State Upper Limit: | 51,294,715,159 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 46,988,491,454 | (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, D3, 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