2006 Confidence Interval Detail
168/Mitchell
168-903/Westbrook ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 3,828,230 | 0.6788 | 5,639,702 | 6 | 219 | .105504605 |
| A | 3,856,326 | 0.8436 | 4,571,273 | 11 | 122 | .067966925 |
| A | 3,827,335 | 0.9238 | 4,143,034 | 6 | 82 | .024357881 |
| A | 3,781,068 | 0.9380 | 4,030,989 | 8 | 46 | .081534597 |
| D3 | 4,430,660 | 0.9685 | 4,574,765 | 20 | 1,058 | .065747330 |
| G1 | 55,164,749 | 0.9923 | 55,592,814 | 5 | 17 | .002090591 |
| Random Totals: | 74,888,368 | 78,552,577 | 56 | 1,544 | ||
| Catg D1 Exception Values: | 8,688,620 | 10,382,393 | ||||
| Catg G1 Exception Values: | 224,805,413 | 222,782,075 | ||||
| Total Test Values (4): | 308,382,401 | 311,717,045 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 15,585,852 |
Confidence Interval Values (5)
| State Lower Limit: | 296,131,193 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 308,382,401 | (Within Confidence Interval) |
| State Upper Limit: | 327,302,897 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 341,108,850 | (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