2008 Confidence Interval Detail
019/Bowie
019-913/Hubbard ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 1,094,405 | 0.8573 | 1,276,572 | 7 | 31 | .024863520 |
| A | 1,279,197 | 0.9560 | 1,338,072 | 6 | 21 | .011916161 |
| A | 1,448,989 | 0.9976 | 1,452,475 | 5 | 17 | .003851900 |
| A | 1,596,157 | 0.9786 | 1,631,062 | 7 | 12 | .014485915 |
| D3 | 13,829,585 | 1.0522 | 13,143,495 | 29 | 358 | .052345489 |
| Random Totals: | 19,248,333 | 18,841,676 | 54 | 439 | ||
| Catg D1 Exception Values: | 1,142,832 | 971,722 | ||||
| Total Test Values (4): | 20,391,165 | 19,813,398 |
Margin of Error
| Margin of Error Percent: | 5.5287185 |
|---|---|
| Margin of Error Value: | 1,095,427 |
Confidence Interval Values (5)
| State Lower Limit: | 18,717,971 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 20,391,165 | (Within Confidence Interval) |
| State Upper Limit: | 20,908,825 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 16,929,344 | (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