2007 Confidence Interval Detail
239/Washington
239-903/Burton ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 10,021,124 | 0.9188 | 10,906,752 | 7 | 270 | .017776952 |
| A | 9,951,035 | 0.8945 | 11,124,690 | 8 | 138 | .006901684 |
| A | 9,995,102 | 0.9158 | 10,914,066 | 7 | 91 | .006627441 |
| A | 9,919,255 | 1.0660 | 9,305,117 | 7 | 51 | .011452430 |
| D3 | 142,290,994 | 0.9853 | 144,413,878 | 33 | 3,354 | .041922061 |
| G1 | 21,754,258 | 0.8085 | 26,906,936 | 6 | 35 | .084445848 |
| G1 | 22,228,720 | 0.9421 | 23,594,863 | 5 | 21 | .009038714 |
| G1 | 21,297,667 | 0.9117 | 23,360,389 | 5 | 14 | .008964389 |
| G1 | 21,010,060 | 0.9801 | 21,436,649 | 4 | 9 | .001103765 |
| Random Totals: | 268,468,215 | 281,963,340 | 82 | 3,983 | ||
| Catg J Exception Values: | 6,272,623 | 6,094,981 | ||||
| Catg D1 Exception Values: | 7,465,656 | 6,707,851 | ||||
| Total Test Values (4): | 282,206,494 | 294,766,172 |
Margin of Error
| Margin of Error Percent: | 5.0000001 |
|---|---|
| Margin of Error Value: | 14,738,309 |
Confidence Interval Values (5)
| State Lower Limit: | 280,027,863 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 282,206,494 | (Within Confidence Interval) |
| State Upper Limit: | 309,504,481 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 288,806,593 | (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