2009 Confidence Interval Detail
240/Webb
240-903/United ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 1,070,623,629 | 0.9204 | 1,163,215,590 | 58 | 11,783 | .023651496 |
| A | 1,073,493,643 | 0.9601 | 1,118,106,075 | 58 | 8,135 | .005806782 |
| A | 1,043,303,911 | 0.9837 | 1,060,591,553 | 58 | 5,656 | .008046313 |
| A | 1,081,599,046 | 0.9857 | 1,097,290,297 | 58 | 3,092 | .024731341 |
| C | 77,554,270 | 1.0203 | 76,011,242 | 14 | 3,545 | .189912514 |
| C | 83,143,987 | 0.8161 | 101,879,656 | 8 | 1,860 | .040920547 |
| C | 84,352,330 | 1.0366 | 81,374,040 | 7 | 434 | .026446271 |
| C | 91,936,890 | 1.0301 | 89,250,451 | 7 | 108 | .011363145 |
| D3 | 305,885,058 | 0.8692 | 351,915,621 | 12 | 7,780 | .135203146 |
| F1 | 536,463,909 | 0.9364 | 572,900,373 | 7 | 1,385 | .037369109 |
| F1 | 541,283,137 | 0.9224 | 586,820,400 | 7 | 464 | .052098736 |
| F1 | 552,203,800 | 0.9294 | 594,150,850 | 7 | 189 | .008256275 |
| F1 | 571,919,434 | 0.9494 | 602,400,921 | 6 | 58 | .001185505 |
| G1 | 247,722,344 | 1.0450 | 237,054,875 | 7 | 1,136 | .002029118 |
| G1 | 247,775,056 | 1.0398 | 238,291,071 | 7 | 383 | .005456493 |
| G1 | 248,211,183 | 1.0424 | 238,115,103 | 7 | 165 | .001727992 |
| G1 | 246,938,892 | 1.0129 | 243,793,950 | 6 | 69 | .008182139 |
| L1 | 174,690,853 | 0.9194 | 190,005,278 | 7 | 1,268 | .029215957 |
| L1 | 176,297,509 | 1.0283 | 171,445,599 | 7 | 244 | .001227930 |
| L1 | 178,303,300 | 0.9891 | 180,268,224 | 6 | 62 | .002238861 |
| L1 | 162,953,430 | 0.9690 | 168,166,594 | 5 | 17 | .003230618 |
| Random Totals: | 8,796,655,611 | 9,163,047,763 | 359 | 47,833 | ||
| Catg D1 Exception Values: | 72,908,614 | 109,502,717 | ||||
| Total Test Values (4): | 8,869,564,225 | 9,272,550,480 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 463,627,524 |
Confidence Interval Values (5)
| State Lower Limit: | 8,808,922,956 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 8,869,564,225 | (Within Confidence Interval) |
| State Upper Limit: | 9,736,178,004 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 9,743,761,472 | (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