2009 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 | 37,678,479 | 0.6670 | 56,489,474 | 17 | 1,580 | .335103293 |
| A | 38,348,452 | 0.7227 | 53,062,754 | 22 | 725 | .087157564 |
| A | 38,408,366 | 0.7697 | 49,900,437 | 15 | 407 | .015398620 |
| A | 40,510,051 | 0.8302 | 48,795,532 | 17 | 232 | .035260920 |
| C | 9,249,092 | 1.0651 | 8,683,778 | 19 | 3,336 | .113657897 |
| C | 8,749,603 | 0.7356 | 11,894,512 | 24 | 2,051 | .744389160 |
| C | 10,194,895 | 0.9157 | 11,133,444 | 17 | 1,038 | .188022779 |
| C | 7,321,381 | 0.9453 | 7,745,034 | 16 | 262 | .020748229 |
| D3 | 28,761,945 | 1.0004 | 28,750,445 | 21 | 1,712 | .029139646 |
| F1 | 4,542,060 | 0.5969 | 7,609,415 | 16 | 113 | .929369612 |
| F1 | 3,737,825 | 0.7587 | 4,926,618 | 14 | 34 | .193004465 |
| F1 | 5,512,991 | 0.7469 | 7,381,163 | 9 | 17 | .168924161 |
| F1 | 4,233,722 | 0.8119 | 5,214,586 | 5 | 6 | .034278927 |
| L1 | 3,458,226 | 1.0016 | 3,452,702 | 15 | 88 | .003715159 |
| L1 | 6,739,615 | 1.0145 | 6,643,287 | 12 | 15 | .003429097 |
| Random Totals: | 247,446,703 | 311,683,181 | 239 | 11,616 | ||
| Catg J Exception Values: | 8,993,370 | 9,248,052 | ||||
| Catg D1 Exception Values: | 8,274,290 | 7,797,253 | ||||
| Total Test Values (4): | 264,714,363 | 328,728,486 |
Margin of Error
| Margin of Error Percent: | 5.6885067 |
|---|---|
| Margin of Error Value: | 18,699,742 |
Confidence Interval Values (5)
| Local Test Value: | 264,714,363 | (Outside Confidence Interval) |
|---|---|---|
| State Lower Limit: | 310,028,744 | (State Test Value minus Margin of Error Percent) |
| State Upper Limit: | 347,428,228 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 281,510,511 | (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