2009 Confidence Interval Detail
228/Trinity
228-905/Apple Springs ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 1,674,610 | 0.7190 | 2,329,082 | 16 | 94 | .066032248 |
| A | 1,716,458 | 0.6917 | 2,481,506 | 15 | 58 | .029170594 |
| A | 1,709,553 | 0.6845 | 2,497,521 | 15 | 38 | .025388063 |
| A | 1,728,942 | 0.7460 | 2,317,617 | 13 | 21 | .038137650 |
| D3 | 12,394,251 | 0.7225 | 17,154,673 | 19 | 1,394 | .068177157 |
| Random Totals: | 19,223,814 | 26,780,399 | 78 | 1,605 | ||
| Catg J Exception Values: | 1,392,650 | 780,761 | ||||
| Catg D1 Exception Values: | 11,949,514 | 11,677,678 | ||||
| Total Test Values (4): | 32,565,978 | 39,238,838 |
Margin of Error
| Margin of Error Percent: | 5.2739355 |
|---|---|
| Margin of Error Value: | 2,069,431 |
Confidence Interval Values (5)
| Local Test Value: | 32,565,978 | (Outside Confidence Interval) |
|---|---|---|
| State Lower Limit: | 37,169,407 | (State Test Value minus Margin of Error Percent) |
| State Upper Limit: | 41,308,269 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 33,925,135 | (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