2008 Confidence Interval Detail
070/Ellis
070-901/Avalon ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 2,665,240 | 0.9606 | 2,774,558 | 9 | 66 | .029990470 |
| A | 2,920,700 | 0.9579 | 3,049,066 | 11 | 43 | .006754422 |
| A | 2,691,520 | 0.9671 | 2,783,083 | 8 | 27 | .004919908 |
| A | 2,744,260 | 0.9750 | 2,814,626 | 7 | 15 | .000629396 |
| D3 | 12,437,220 | 0.8892 | 13,986,977 | 25 | 571 | .078530824 |
| Random Totals: | 23,458,940 | 25,408,310 | 60 | 722 | ||
| Catg J Exception Values: | 1,585,080 | 1,605,769 | ||||
| Catg D1 Exception Values: | 3,914,678 | 3,598,380 | ||||
| Catg F1 Exception Values: | 3,535,450 | 3,545,363 | ||||
| Total Test Values (4): | 32,494,148 | 34,157,822 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 1,707,891 |
Confidence Interval Values (5)
| State Lower Limit: | 32,449,931 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 32,494,148 | (Within Confidence Interval) |
| State Upper Limit: | 35,865,713 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 33,076,001 | (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