2009 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 | 11,887,730 | 0.8418 | 14,121,799 | 8 | 285 | .066937268 |
| A | 11,766,792 | 0.9786 | 12,024,108 | 7 | 142 | .016953873 |
| A | 11,225,930 | 0.9876 | 11,366,879 | 8 | 95 | .027348200 |
| A | 12,320,600 | 1.0203 | 12,075,468 | 6 | 61 | .004260914 |
| D3 | 177,243,227 | 1.0243 | 173,038,394 | 20 | 3,420 | .026721678 |
| G1 | 28,663,579 | 0.9451 | 30,328,620 | 9 | 35 | .026297600 |
| G1 | 29,635,322 | 0.9991 | 29,662,018 | 8 | 20 | .009385323 |
| G1 | 29,264,920 | 1.0630 | 27,530,499 | 7 | 14 | .017483869 |
| G1 | 26,610,140 | 1.1479 | 23,181,584 | 5 | 7 | .028452465 |
| Random Totals: | 338,618,240 | 333,329,369 | 78 | 4,079 | ||
| Catg D1 Exception Values: | 7,417,257 | 6,792,235 | ||||
| Total Test Values (4): | 346,035,497 | 340,121,604 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 17,006,080 |
Confidence Interval Values (5)
| State Lower Limit: | 323,115,524 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 346,035,497 | (Within Confidence Interval) |
| State Upper Limit: | 357,127,684 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 367,909,805 | (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