2009 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 | 8,645,560 | 0.9739 | 8,877,256 | 6 | 95 | .003545250 |
| A | 7,407,670 | 1.0002 | 7,406,189 | 6 | 38 | .006154056 |
| A | 8,244,970 | 1.0288 | 8,014,162 | 6 | 34 | .001033114 |
| A | 8,227,220 | 1.0894 | 7,552,065 | 6 | 25 | .035655531 |
| C | 8,109,280 | 0.9331 | 8,690,687 | 10 | 352 | .024982924 |
| C | 8,350,860 | 1.0779 | 7,747,342 | 8 | 275 | .035287159 |
| C | 11,521,390 | 1.0144 | 11,357,837 | 10 | 248 | .005295202 |
| C | 3,355,000 | 1.0033 | 3,343,965 | 7 | 44 | .008043914 |
| D3 | 29,767,770 | 0.9616 | 30,956,500 | 26 | 739 | .028478051 |
| Random Totals: | 93,629,720 | 93,946,003 | 85 | 1,850 | ||
| Catg J Exception Values: | 2,378,317 | 2,453,093 | ||||
| Catg D1 Exception Values: | 3,541,200 | 3,079,137 | ||||
| Total Test Values (4): | 99,549,237 | 99,478,233 |
Margin of Error
| Margin of Error Percent: | 5.0000004 |
|---|---|
| Margin of Error Value: | 4,973,912 |
Confidence Interval Values (5)
| State Lower Limit: | 94,504,321 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 99,549,237 | (Within Confidence Interval) |
| State Upper Limit: | 104,452,145 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 129,443,620 | (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