2007 Confidence Interval Detail
228/Trinity
228-901/Groveton ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 12,370,059 | 1.0078 | 12,274,319 | 15 | 711 | .226962414 |
| A | 12,372,061 | 0.7937 | 15,587,830 | 17 | 391 | .091939333 |
| A | 12,356,624 | 0.9177 | 13,464,775 | 19 | 250 | .033842781 |
| A | 12,336,120 | 1.0358 | 11,909,751 | 18 | 127 | .075144099 |
| C | 4,375,501 | 1.0110 | 4,327,894 | 15 | 1,363 | .076665251 |
| C | 3,961,681 | 0.9879 | 4,010,204 | 18 | 840 | .012920372 |
| C | 1,802,428 | 1.0591 | 1,701,849 | 17 | 322 | .107647458 |
| C | 3,361,032 | 1.0625 | 3,163,324 | 19 | 252 | .018347067 |
| D3 | 32,628,568 | 0.5919 | 55,125,136 | 19 | 4,009 | .326564900 |
| Random Totals: | 95,564,074 | 121,565,082 | 157 | 8,265 | ||
| Catg J Exception Values: | 4,982,287 | 4,987,585 | ||||
| Catg D1 Exception Values: | 29,384,008 | 28,687,537 | ||||
| Total Test Values (4): | 129,930,369 | 155,240,204 |
Margin of Error
| Margin of Error Percent: | 9.4825751 |
|---|---|
| Margin of Error Value: | 14,720,769 |
Confidence Interval Values (5)
| Local Test Value: | 129,930,369 | (Outside Confidence Interval) |
|---|---|---|
| State Lower Limit: | 140,519,435 | (State Test Value minus Margin of Error Percent) |
| State Upper Limit: | 169,960,973 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 131,008,407 | (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