2008 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 | 1,616,013 | 0.6347 | 2,546,105 | 16 | 93 | .102807040 |
| A | 1,637,124 | 0.6052 | 2,705,096 | 15 | 57 | .014274422 |
| A | 1,599,209 | 0.6284 | 2,544,890 | 16 | 37 | .025494505 |
| A | 1,836,746 | 0.7551 | 2,432,454 | 12 | 23 | .010591126 |
| D3 | 11,651,013 | 1.1161 | 10,439,040 | 42 | 1,447 | .383287031 |
| Random Totals: | 18,340,105 | 20,667,585 | 101 | 1,657 | ||
| Catg J Exception Values: | 1,351,460 | 1,539,589 | ||||
| Catg D1 Exception Values: | 10,426,576 | 14,075,380 | ||||
| Total Test Values (4): | 30,118,141 | 36,282,554 |
Margin of Error
| Margin of Error Percent: | 5.5081514 |
|---|---|
| Margin of Error Value: | 1,998,498 |
Confidence Interval Values (5)
| Local Test Value: | 30,118,141 | (Outside Confidence Interval) |
|---|---|---|
| State Lower Limit: | 34,284,056 | (State Test Value minus Margin of Error Percent) |
| State Upper Limit: | 38,281,052 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 27,234,038 | (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