2011 Confidence Interval Detail
044/Collingsworth
044-902/Wellington ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 8,479,540 | 0.9399 | 9,021,747 | 13 | 461 | .253618790 |
| A | 8,516,040 | 0.9445 | 9,016,453 | 11 | 200 | .062219376 |
| A | 8,526,100 | 0.9681 | 8,807,045 | 11 | 129 | .015683468 |
| A | 8,721,650 | 0.8884 | 9,817,256 | 12 | 81 | .015590197 |
| D3 | 7,638,990 | 0.9767 | 7,821,225 | 21 | 1,669 | .003478261 |
| F1 | 1,289,920 | 0.9287 | 1,388,952 | 9 | 83 | .030033693 |
| F1 | 1,329,740 | 0.9572 | 1,389,198 | 9 | 27 | .060237950 |
| F1 | 1,316,690 | 0.8005 | 1,644,834 | 5 | 11 | .152521233 |
| F1 | 1,714,740 | 0.7000 | 2,449,629 | 2 | 4 | .038669539 |
| L1 | 2,848,870 | 1.0859 | 2,623,510 | 10 | 42 | .132343588 |
| L1 | 3,428,640 | 1.1453 | 2,993,661 | 4 | 7 | .026228918 |
| Random Totals: | 53,810,920 | 56,973,510 | 107 | 2,714 | ||
| Catg J Exception Values: | 16,810 | 17,063 | ||||
| Catg D1 Exception Values: | 23,380,120 | 26,278,835 | ||||
| Total Test Values (4): | 77,207,850 | 83,269,408 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 4,163,470 |
Confidence Interval Values (5)
| Local Test Value: | 77,207,850 | (Outside Confidence Interval) |
|---|---|---|
| State Lower Limit: | 79,105,938 | (State Test Value minus Margin of Error Percent) |
| State Upper Limit: | 87,432,878 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 79,471,065 | (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