2007 Confidence Interval Detail
228/Trinity
228-903/Trinity ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 35,518,388 | 0.6996 | 50,769,565 | 17 | 1,580 | .381489230 |
| A | 35,476,734 | 0.9171 | 38,683,605 | 18 | 724 | .049100894 |
| A | 35,463,264 | 0.8767 | 40,450,854 | 17 | 410 | .062613708 |
| A | 35,484,059 | 1.1041 | 32,138,447 | 17 | 224 | .022238396 |
| C | 10,331,443 | 1.2146 | 8,506,046 | 17 | 3,514 | .604795955 |
| C | 9,350,874 | 1.3021 | 7,181,379 | 19 | 2,068 | .189694347 |
| C | 7,228,731 | 0.9004 | 8,028,355 | 19 | 856 | 1.625257156 |
| C | 8,458,664 | 1.0485 | 8,067,395 | 8 | 346 | .168052585 |
| D3 | 21,954,272 | 0.8584 | 25,575,806 | 21 | 1,694 | .036888554 |
| F1 | 4,498,667 | 0.6810 | 6,605,972 | 10 | 116 | .355847222 |
| F1 | 4,655,636 | 0.8880 | 5,242,833 | 8 | 42 | .056244040 |
| F1 | 4,795,518 | 0.7042 | 6,809,881 | 7 | 15 | .152398841 |
| F1 | 4,030,223 | 0.9008 | 4,474,049 | 4 | 6 | .026530231 |
| L1 | 3,671,582 | 0.9351 | 3,926,406 | 7 | 108 | .011832572 |
| L1 | 3,806,875 | 1.0000 | 3,806,875 | 5 | 16 | .000575197 |
| L1 | 6,773,828 | 1.0127 | 6,688,879 | 4 | 9 | .008524009 |
| Random Totals: | 231,498,758 | 256,956,347 | 198 | 11,728 | ||
| Catg J Exception Values: | 8,208,728 | 8,181,143 | ||||
| Catg D1 Exception Values: | 10,976,052 | 10,567,541 | ||||
| Total Test Values (4): | 250,683,538 | 275,705,031 |
Margin of Error
| Margin of Error Percent: | 6.4135456 |
|---|---|
| Margin of Error Value: | 17,682,468 |
Confidence Interval Values (5)
| Local Test Value: | 250,683,538 | (Outside Confidence Interval) |
|---|---|---|
| State Lower Limit: | 258,022,563 | (State Test Value minus Margin of Error Percent) |
| State Upper Limit: | 293,387,499 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 220,201,883 | (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