2010 Confidence Interval Detail
068/Ector
068-901/Ector County ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 877,975,839 | 0.9171 | 957,339,264 | 48 | 13,326 | .036198285 |
| A | 865,150,685 | 0.9753 | 887,061,094 | 49 | 7,795 | .015942229 |
| A | 857,282,191 | 1.0163 | 843,532,609 | 50 | 5,317 | .010870880 |
| A | 794,541,608 | 1.0150 | 782,799,614 | 51 | 2,774 | .004375859 |
| F1 | 252,107,534 | 1.0059 | 250,628,824 | 15 | 2,200 | .039982402 |
| F1 | 260,081,094 | 0.9797 | 265,470,138 | 10 | 592 | .005104041 |
| F1 | 279,663,834 | 0.9326 | 299,875,439 | 11 | 162 | .126009906 |
| F1 | 206,066,781 | 0.8640 | 238,503,219 | 8 | 22 | .098767053 |
| G1 | 908,650,641 | 1.0535 | 862,506,541 | 13 | 302 | .020687753 |
| G1 | 918,545,752 | 1.0232 | 897,718,679 | 8 | 50 | .005420315 |
| G1 | 914,840,499 | 1.0506 | 870,779,078 | 5 | 10 | .007092009 |
| G1 | 890,573,883 | 0.9758 | 912,660,261 | 2 | 3 | .000413633 |
| L1 | 408,567,735 | 1.0337 | 395,247,881 | 10 | 1,039 | .006025956 |
| L1 | 337,237,002 | 1.0450 | 322,714,834 | 10 | 174 | .008844593 |
| L1 | 358,405,217 | 1.0956 | 327,131,450 | 9 | 63 | .095387047 |
| L1 | 271,779,951 | 0.9086 | 299,119,471 | 7 | 15 | .022436407 |
| Random Totals: | 9,401,470,246 | 9,413,088,396 | 306 | 33,844 | ||
| Catg J Exception Values: | 118,266,455 | 122,261,834 | ||||
| Catg D1 Exception Values: | 4,538,345 | 4,927,579 | ||||
| Total Test Values (4): | 9,524,275,046 | 9,540,277,809 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 477,013,890 |
Confidence Interval Values (5)
| State Lower Limit: | 9,063,263,919 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 9,524,275,046 | (Within Confidence Interval) |
| State Upper Limit: | 10,017,291,699 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 9,988,366,477 | (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