2008 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 | 12,634,889 | 0.7584 | 16,659,927 | 16 | 726 | .297364931 |
| A | 12,456,562 | 0.7152 | 17,416,893 | 16 | 386 | .243665299 |
| A | 12,267,541 | 0.6101 | 20,107,427 | 19 | 249 | .070525260 |
| A | 13,684,272 | 0.6435 | 21,265,380 | 18 | 143 | .052050954 |
| C | 4,418,615 | 0.7417 | 5,957,415 | 16 | 1,361 | .409240867 |
| C | 4,222,413 | 0.7151 | 5,904,647 | 20 | 889 | .587246375 |
| C | 1,844,549 | 0.7715 | 2,390,861 | 19 | 326 | .361128633 |
| C | 3,712,970 | 0.8513 | 4,361,529 | 16 | 269 | .060104400 |
| D3 | 49,045,473 | 1.0491 | 46,750,046 | 44 | 4,091 | .850207087 |
| Random Totals: | 114,287,284 | 140,814,125 | 184 | 8,440 | ||
| Catg J Exception Values: | 5,430,674 | 5,813,021 | ||||
| Catg D1 Exception Values: | 28,025,332 | 40,935,978 | ||||
| Total Test Values (4): | 147,743,290 | 187,563,124 |
Margin of Error
| Margin of Error Percent: | 7.8092994 |
|---|---|
| Margin of Error Value: | 14,647,366 |
Confidence Interval Values (5)
| Local Test Value: | 147,743,290 | (Outside Confidence Interval) |
|---|---|---|
| State Lower Limit: | 172,915,758 | (State Test Value minus Margin of Error Percent) |
| State Upper Limit: | 202,210,490 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 180,830,063 | (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