2007 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 | 924,512,920 | 0.8909 | 1,037,729,173 | 68 | 10,142 | .013559552 |
| A | 924,268,529 | 0.9298 | 994,050,902 | 68 | 6,911 | .008611310 |
| A | 923,676,011 | 0.9167 | 1,007,609,917 | 68 | 4,935 | .004631078 |
| A | 923,984,096 | 0.9600 | 962,483,433 | 68 | 2,577 | .014216300 |
| C | 81,291,676 | 0.9675 | 84,022,404 | 7 | 4,198 | .015529714 |
| C | 81,202,095 | 0.8715 | 93,175,095 | 21 | 2,526 | .104507918 |
| C | 82,767,557 | 0.9121 | 90,743,950 | 7 | 612 | .014030374 |
| C | 79,684,650 | 1.1300 | 70,517,389 | 7 | 166 | .024134406 |
| D3 | 211,543,748 | 1.0286 | 205,661,820 | 15 | 6,721 | .027390251 |
| F1 | 467,913,606 | 1.0455 | 447,550,077 | 8 | 1,322 | .015934666 |
| F1 | 467,456,372 | 0.9904 | 471,987,452 | 7 | 421 | .002874177 |
| F1 | 470,439,846 | 0.9640 | 488,008,139 | 7 | 171 | .001341986 |
| F1 | 463,785,476 | 0.9803 | 473,105,657 | 6 | 50 | .001603335 |
| G1 | 249,467,412 | 1.0762 | 231,803,951 | 9 | 1,055 | .010106513 |
| G1 | 249,785,057 | 1.0965 | 227,802,150 | 9 | 379 | .043347214 |
| G1 | 250,337,186 | 0.9395 | 266,457,888 | 9 | 173 | .020433738 |
| G1 | 247,652,535 | 1.2948 | 191,267,018 | 8 | 61 | .188605026 |
| L1 | 140,046,949 | 0.9678 | 144,706,498 | 7 | 1,120 | .012663925 |
| L1 | 140,259,223 | 1.0190 | 137,643,987 | 7 | 236 | .000781908 |
| L1 | 143,720,745 | 0.9290 | 154,704,785 | 6 | 73 | .022832868 |
| L1 | 135,789,527 | 1.0189 | 133,270,711 | 5 | 19 | .004631043 |
| Random Totals: | 7,659,585,216 | 7,914,302,396 | 417 | 43,868 | ||
| Catg D1 Exception Values: | 68,540,483 | 111,412,756 | ||||
| Total Test Values (4): | 7,728,125,699 | 8,025,715,152 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 401,285,758 |
Confidence Interval Values (5)
| State Lower Limit: | 7,624,429,394 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 7,728,125,699 | (Within Confidence Interval) |
| State Upper Limit: | 8,427,000,910 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 8,434,606,581 | (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