2006 Confidence Interval Detail
072/Erath
072-904/Bluff Dale ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 5,772,516 | 0.9718 | 5,940,025 | 7 | 78 | .007125659 |
| A | 5,476,630 | 1.0859 | 5,043,402 | 7 | 27 | .001259255 |
| A | 5,625,422 | 1.1059 | 5,086,737 | 9 | 21 | .010847166 |
| A | 5,082,143 | 1.0370 | 4,900,813 | 9 | 14 | .018964353 |
| C | 9,288,649 | 0.9882 | 9,399,564 | 15 | 353 | .003347893 |
| C | 9,120,001 | 1.0426 | 8,747,363 | 17 | 263 | .036823345 |
| C | 10,117,929 | 0.9785 | 10,340,244 | 17 | 190 | .016447422 |
| C | 5,675,625 | 1.0048 | 5,648,512 | 17 | 72 | .004523512 |
| D3 | 23,884,800 | 0.9649 | 24,753,653 | 27 | 776 | .093631076 |
| Random Totals: | 80,043,715 | 79,860,313 | 125 | 1,794 | ||
| Catg J Exception Values: | 2,119,890 | 2,280,847 | ||||
| Catg D1 Exception Values: | 3,633,060 | 3,175,783 | ||||
| Total Test Values (4): | 85,796,665 | 85,316,943 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 4,265,847 |
Confidence Interval Values (5)
| State Lower Limit: | 81,051,096 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 85,796,665 | (Within Confidence Interval) |
| State Upper Limit: | 89,582,790 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 96,139,575 | (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