2007 Confidence Interval Detail
241/Wharton
241-903/El Campo ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 94,383,704 | 0.9249 | 102,047,469 | 44 | 1,892 | .033147304 |
| A | 94,457,612 | 0.9649 | 97,893,680 | 26 | 948 | .025108996 |
| A | 94,342,557 | 0.9501 | 99,297,502 | 32 | 646 | .010366767 |
| A | 94,316,316 | 0.9703 | 97,203,253 | 13 | 394 | .013665659 |
| D3 | 82,695,210 | 0.9621 | 85,952,822 | 25 | 6,742 | .020748485 |
| F1 | 21,056,779 | 0.9542 | 22,067,469 | 8 | 269 | .041964341 |
| F1 | 21,343,111 | 0.8724 | 24,464,822 | 8 | 96 | .022615808 |
| F1 | 21,993,489 | 0.9310 | 23,623,511 | 8 | 28 | .011522848 |
| F1 | 19,726,388 | 0.9304 | 21,202,051 | 4 | 7 | .002001086 |
| G1 | 90,015,651 | 0.9178 | 98,077,632 | 7 | 102 | .009025307 |
| G1 | 88,664,942 | 0.9744 | 90,994,399 | 6 | 33 | .001483527 |
| G1 | 95,710,664 | 1.0091 | 94,847,551 | 5 | 14 | .000790869 |
| G1 | 82,834,090 | 0.9704 | 85,360,769 | 3 | 4 | .000882633 |
| Random Totals: | 901,540,513 | 943,032,930 | 189 | 11,175 | ||
| Catg D1 Exception Values: | 55,620,230 | 57,542,344 | ||||
| Total Test Values (4): | 957,160,743 | 1,000,575,274 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 50,028,764 |
Confidence Interval Values (5)
| State Lower Limit: | 950,546,510 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 957,160,743 | (Within Confidence Interval) |
| State Upper Limit: | 1,050,604,038 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 1,069,206,662 | (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