2009 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 | 8,739,870 | 0.8594 | 10,169,735 | 14 | 474 | .041573855 |
| A | 8,500,790 | 0.9365 | 9,077,192 | 15 | 198 | .015154635 |
| A | 8,441,350 | 0.9568 | 8,822,481 | 15 | 127 | .003430570 |
| A | 8,361,710 | 0.9469 | 8,830,616 | 15 | 78 | .007968739 |
| D3 | 7,188,990 | 1.0509 | 6,840,794 | 20 | 1,641 | .026162805 |
| F1 | 1,353,760 | 0.8545 | 1,584,272 | 5 | 84 | .079060033 |
| F1 | 1,361,540 | 0.9185 | 1,482,352 | 6 | 26 | .016992251 |
| F1 | 1,335,720 | 0.8784 | 1,520,628 | 4 | 10 | .033067712 |
| F1 | 1,100,650 | 0.8735 | 1,260,046 | 2 | 3 | .009717161 |
| L1 | 1,407,840 | 0.7589 | 1,855,106 | 6 | 42 | .121450153 |
| L1 | 1,640,960 | 1.0044 | 1,633,771 | 4 | 8 | .000618677 |
| L1 | 1,105,170 | 0.9981 | 1,107,274 | 3 | 3 | .000020086 |
| Random Totals: | 50,538,350 | 54,184,267 | 109 | 2,694 | ||
| Catg J Exception Values: | 2,268,353 | 2,273,201 | ||||
| Catg D1 Exception Values: | 30,490,140 | 30,348,322 | ||||
| Catg L1 Exception Values: | 1,019,080 | 900,118 | ||||
| Total Test Values (4): | 84,315,923 | 87,705,908 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 4,385,295 |
Confidence Interval Values (5)
| State Lower Limit: | 83,320,613 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 84,315,923 | (Within Confidence Interval) |
| State Upper Limit: | 92,091,203 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 82,820,715 | (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