2006 Confidence Interval Detail
031/Cameron
031-909/Point Isabel ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 481,823,233 | 0.9553 | 504,368,505 | 42 | 3,815 | .028287028 |
| A | 486,344,401 | 0.9601 | 506,555,985 | 28 | 1,898 | .013894532 |
| A | 477,122,408 | 0.9538 | 500,233,181 | 48 | 1,266 | .007785298 |
| A | 481,717,272 | 0.9254 | 520,550,326 | 45 | 702 | .013698304 |
| C | 46,387,230 | 0.9028 | 51,381,513 | 7 | 1,041 | .014512948 |
| C | 46,372,796 | 0.9231 | 50,235,940 | 7 | 501 | .010092248 |
| C | 46,636,165 | 0.9919 | 47,017,003 | 7 | 289 | .212982559 |
| C | 46,104,631 | 1.0338 | 44,597,244 | 6 | 69 | .069119893 |
| F1 | 58,918,824 | 1.0246 | 57,504,220 | 7 | 239 | .005255163 |
| F1 | 58,647,191 | 1.0286 | 57,016,519 | 6 | 76 | .022368912 |
| F1 | 57,796,002 | 0.9244 | 62,522,720 | 6 | 35 | .008403477 |
| F1 | 58,339,626 | 0.9143 | 63,807,969 | 4 | 10 | .007118408 |
| Random Totals: | 2,346,209,779 | 2,465,791,125 | 213 | 9,941 | ||
| Catg D1 Exception Values: | 1,372,865 | 1,361,002 | ||||
| Total Test Values (4): | 2,347,582,644 | 2,467,152,127 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 123,357,606 |
Confidence Interval Values (5)
| State Lower Limit: | 2,343,794,521 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 2,347,582,644 | (Within Confidence Interval) |
| State Upper Limit: | 2,590,509,733 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 2,569,207,092 | (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