2008 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 | 524,087,985 | 0.9493 | 552,078,358 | 50 | 10,420 | .037450991 |
| A | 699,135,326 | 0.9416 | 742,497,160 | 50 | 8,254 | .020994209 |
| A | 870,107,961 | 0.9852 | 883,179,010 | 50 | 6,863 | .009697163 |
| A | 1,117,277,177 | 1.0152 | 1,100,548,835 | 50 | 4,827 | .009466584 |
| F1 | 213,335,388 | 1.0067 | 211,915,554 | 24 | 2,223 | .035075089 |
| F1 | 239,773,664 | 1.0165 | 235,881,617 | 7 | 674 | .011077992 |
| F1 | 235,619,642 | 0.9693 | 243,082,268 | 7 | 172 | .000952154 |
| F1 | 245,256,593 | 0.7946 | 308,654,157 | 5 | 29 | .119446890 |
| G1 | 911,389,356 | 1.0756 | 847,331,123 | 9 | 290 | .010096246 |
| G1 | 947,527,222 | 1.0422 | 909,160,643 | 7 | 39 | .030648372 |
| G1 | 996,287,112 | 0.9990 | 997,284,396 | 4 | 7 | .001697867 |
| L1 | 314,674,626 | 1.1071 | 284,233,245 | 8 | 1,056 | .024913956 |
| L1 | 393,022,256 | 0.9868 | 398,279,546 | 8 | 255 | .006692869 |
| L1 | 449,821,538 | 1.0054 | 447,405,548 | 6 | 77 | .000644500 |
| L1 | 348,023,509 | 1.0538 | 330,255,750 | 5 | 14 | .004472896 |
| Random Totals: | 8,505,339,355 | 8,491,787,210 | 290 | 35,200 | ||
| Catg D1 Exception Values: | 4,548,755 | 5,147,958 | ||||
| Catg G1 Exception Values: | 752,999,117 | 739,733,701 | ||||
| Total Test Values (4): | 9,262,887,227 | 9,236,668,869 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 461,833,443 |
Confidence Interval Values (5)
| State Lower Limit: | 8,774,835,426 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 9,262,887,227 | (Within Confidence Interval) |
| State Upper Limit: | 9,698,502,312 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 9,301,998,934 | (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