2009 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 | 12,382,405 | 0.5596 | 22,127,243 | 15 | 697 | .294100441 |
| A | 12,723,556 | 0.7393 | 17,210,275 | 17 | 388 | .069476950 |
| A | 13,473,663 | 0.6956 | 19,369,843 | 17 | 268 | .082624520 |
| A | 14,045,930 | 0.7477 | 18,785,516 | 16 | 140 | .066412497 |
| C | 4,404,309 | 0.8695 | 5,065,335 | 20 | 1,357 | .114457286 |
| C | 4,170,637 | 0.9809 | 4,251,847 | 22 | 878 | .046080666 |
| C | 2,038,217 | 0.7790 | 2,616,453 | 17 | 353 | .150282588 |
| C | 3,499,259 | 0.8201 | 4,266,869 | 20 | 245 | .387625256 |
| D3 | 41,112,655 | 0.8496 | 48,390,601 | 21 | 4,090 | .132867625 |
| Random Totals: | 107,850,631 | 142,083,982 | 165 | 8,416 | ||
| Catg J Exception Values: | 5,200,770 | 5,338,675 | ||||
| Catg D1 Exception Values: | 36,031,305 | 34,905,646 | ||||
| Total Test Values (4): | 149,082,706 | 182,328,303 |
Margin of Error
| Margin of Error Percent: | 5.7748478 |
|---|---|
| Margin of Error Value: | 10,529,182 |
Confidence Interval Values (5)
| Local Test Value: | 149,082,706 | (Outside Confidence Interval) |
|---|---|---|
| State Lower Limit: | 171,799,121 | (State Test Value minus Margin of Error Percent) |
| State Upper Limit: | 192,857,485 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 226,825,561 | (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