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 | 0.6602 | 2,536,519 | 16 | 94 | .065307216 |
| A | 1,716,458 | 0.6653 | 2,579,976 | 15 | 58 | .026241550 |
| A | 1,709,553 | 0.6539 | 2,614,395 | 15 | 38 | .023994191 |
| A | 1,728,942 | 0.7386 | 2,340,837 | 13 | 21 | .042842251 |
| D3 | 12,394,251 | 0.6595 | 18,793,406 | 20 | 1,394 | .100762058 |
| Random Totals: | 19,223,814 | 28,865,133 | 79 | 1,605 | ||
| Catg J Exception Values: | 1,392,650 | 788,376 | ||||
| Catg D1 Exception Values: | 11,949,514 | 11,677,678 | ||||
| Total Test Values (4): | 32,565,978 | 41,331,187 |
Margin of Error
| Margin of Error Percent: | 6.4558852 |
|---|---|
| Margin of Error Value: | 2,668,294 |
Confidence Interval Values (5)
| Local Test Value: | 32,565,978 | (Outside Confidence Interval) |
|---|---|---|
| State Lower Limit: | 38,662,893 | (State Test Value minus Margin of Error Percent) |
| State Upper Limit: | 43,999,481 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 35,718,038 | (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