2008 Confidence Interval Detail
187/Polk
187-903/Goodrich ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 9,542,552 | 0.7638 | 12,493,522 | 24 | 320 | .066814826 |
| A | 9,919,344 | 0.8274 | 11,988,571 | 23 | 185 | .045357576 |
| A | 10,206,381 | 0.8487 | 12,025,900 | 23 | 130 | .022233837 |
| A | 10,737,414 | 0.9574 | 11,215,181 | 22 | 78 | .011931507 |
| D3 | 8,169,960 | 0.9593 | 8,516,585 | 15 | 422 | .047580343 |
| G1 | 9,814,560 | 0.9020 | 10,880,887 | 15 | 25 | .088131073 |
| Random Totals: | 58,390,211 | 67,120,646 | 122 | 1,160 | ||
| Catg J Exception Values: | 3,336,700 | 3,583,179 | ||||
| Catg D1 Exception Values: | 3,606,141 | 3,681,895 | ||||
| Catg G1 Exception Values: | 3,048,880 | 2,736,353 | ||||
| Total Test Values (4): | 68,381,932 | 77,122,073 |
Margin of Error
| Margin of Error Percent: | 5.0000005 |
|---|---|
| Margin of Error Value: | 3,856,104 |
Confidence Interval Values (5)
| Local Test Value: | 68,381,932 | (Outside Confidence Interval) |
|---|---|---|
| State Lower Limit: | 73,265,969 | (State Test Value minus Margin of Error Percent) |
| State Upper Limit: | 80,978,177 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 98,097,131 | (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