2008 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 | 7,491,350 | 0.9356 | 8,007,001 | 9 | 86 | .041487580 |
| A | 8,588,510 | 1.0233 | 8,392,954 | 8 | 44 | .004936985 |
| A | 8,194,280 | 1.0351 | 7,916,414 | 6 | 33 | .003804053 |
| A | 6,865,020 | 1.0655 | 6,443,003 | 6 | 20 | .006580178 |
| C | 8,090,800 | 1.0110 | 8,002,770 | 9 | 324 | .007154541 |
| C | 8,083,000 | 0.9736 | 8,302,177 | 9 | 259 | .027894619 |
| C | 9,624,190 | 1.0905 | 8,825,484 | 9 | 199 | .036801140 |
| C | 5,546,000 | 0.9739 | 5,694,630 | 8 | 75 | .005669424 |
| D3 | 26,881,900 | 1.0639 | 25,267,318 | 37 | 739 | .024022042 |
| Random Totals: | 89,365,050 | 86,851,751 | 101 | 1,779 | ||
| Catg J Exception Values: | 2,883,168 | 2,773,969 | ||||
| Catg D1 Exception Values: | 4,087,830 | 2,775,663 | ||||
| Total Test Values (4): | 96,336,048 | 92,401,383 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 4,620,069 |
Confidence Interval Values (5)
| State Lower Limit: | 87,781,314 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 96,336,048 | (Within Confidence Interval) |
| State Upper Limit: | 97,021,452 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 118,365,511 | (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