2009 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 | 728,464,854 | 0.9558 | 762,151,971 | 72 | 11,819 | .027077171 |
| A | 857,778,823 | 0.9496 | 903,305,416 | 79 | 8,286 | .013202038 |
| A | 912,300,287 | 0.9940 | 917,807,130 | 72 | 5,981 | .009532971 |
| A | 948,513,954 | 1.0082 | 940,799,399 | 77 | 3,481 | .011449460 |
| F1 | 239,689,555 | 0.9208 | 260,305,772 | 19 | 2,250 | .046129396 |
| F1 | 247,604,551 | 0.9754 | 253,849,242 | 13 | 626 | .001298152 |
| F1 | 262,708,711 | 0.9913 | 265,014,336 | 11 | 171 | .010849291 |
| F1 | 258,084,060 | 1.0349 | 249,380,674 | 9 | 29 | .008329325 |
| G1 | 756,074,197 | 1.1072 | 682,870,481 | 9 | 302 | .014314056 |
| G1 | 783,920,143 | 1.0213 | 767,570,883 | 6 | 44 | .007871727 |
| G1 | 847,743,745 | 1.0213 | 830,063,395 | 4 | 8 | .010829406 |
| L1 | 375,506,699 | 1.0648 | 352,654,676 | 7 | 1,019 | .024350225 |
| L1 | 434,434,490 | 1.0349 | 419,784,027 | 9 | 229 | .003320331 |
| L1 | 438,153,617 | 0.9650 | 454,045,199 | 10 | 68 | .041310317 |
| L1 | 343,241,049 | 1.0126 | 338,970,027 | 5 | 15 | .018748098 |
| Random Totals: | 8,434,218,735 | 8,398,572,628 | 402 | 34,328 | ||
| Catg D1 Exception Values: | 4,509,708 | 5,299,675 | ||||
| Catg G1 Exception Values: | 614,820,390 | 620,560,066 | ||||
| Total Test Values (4): | 9,053,548,833 | 9,024,432,369 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 451,221,618 |
Confidence Interval Values (5)
| State Lower Limit: | 8,573,210,751 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 9,053,548,833 | (Within Confidence Interval) |
| State Upper Limit: | 9,475,653,987 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 9,384,426,273 | (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