2009 Confidence Interval Detail
188/Potter
188-901/Amarillo ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 1,307,950,677 | 1.0066 | 1,299,374,803 | 73 | 19,049 | .034400931 |
| A | 1,301,847,424 | 0.9994 | 1,302,629,001 | 74 | 11,516 | .017851908 |
| A | 1,309,909,278 | 0.9614 | 1,362,501,849 | 75 | 8,276 | .026539639 |
| A | 1,319,743,335 | 0.9728 | 1,356,644,053 | 75 | 4,336 | .024979575 |
| B | 80,862,736 | 0.9922 | 81,498,424 | 14 | 982 | .092542960 |
| B | 71,425,251 | 0.8238 | 86,702,174 | 7 | 100 | .098525358 |
| B | 80,714,331 | 0.8883 | 90,863,820 | 5 | 21 | .064643042 |
| B | 94,096,369 | 0.9992 | 94,171,706 | 5 | 12 | .011945429 |
| F1 | 328,193,141 | 0.8760 | 374,649,704 | 30 | 1,881 | .088801499 |
| F1 | 336,373,324 | 0.6938 | 484,827,506 | 8 | 451 | .282308300 |
| F1 | 312,288,306 | 0.9265 | 337,062,392 | 7 | 134 | .002514715 |
| F1 | 349,208,261 | 0.9816 | 355,754,137 | 6 | 39 | .000794518 |
| L1 | 207,452,229 | 0.9948 | 208,536,619 | 7 | 2,016 | .002502885 |
| L1 | 212,714,723 | 0.9941 | 213,977,188 | 7 | 350 | .000932655 |
| L1 | 239,302,995 | 1.0100 | 236,933,658 | 6 | 94 | .001355521 |
| L1 | 199,981,871 | 1.0072 | 198,552,294 | 5 | 14 | .000054055 |
| Random Totals: | 7,752,064,251 | 8,084,679,328 | 404 | 49,271 | ||
| Catg D1 Exception Values: | 641,361 | 784,360 | ||||
| Total Test Values (4): | 7,752,705,612 | 8,085,463,688 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 404,273,184 |
Confidence Interval Values (5)
| State Lower Limit: | 7,681,190,504 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 7,752,705,612 | (Within Confidence Interval) |
| State Upper Limit: | 8,489,736,872 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 7,215,805,166 | (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