2007 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 | 2,702,815 | 0.8513 | 3,174,927 | 8 | 66 | .062544822 |
| A | 2,633,798 | 0.8941 | 2,945,753 | 10 | 38 | .019657763 |
| A | 2,744,304 | 0.9456 | 2,902,183 | 7 | 28 | .052631715 |
| A | 2,571,602 | 1.0347 | 2,485,360 | 12 | 14 | .012395215 |
| D3 | 11,511,662 | 0.9661 | 11,915,601 | 22 | 604 | .016435696 |
| Random Totals: | 22,164,181 | 23,423,824 | 59 | 750 | ||
| Catg J Exception Values: | 1,388,940 | 1,377,188 | ||||
| Catg D1 Exception Values: | 3,536,298 | 3,886,216 | ||||
| Catg F1 Exception Values: | 3,502,160 | 3,437,405 | ||||
| Catg L1 Exception Values: | 1,768,060 | 1,928,801 | ||||
| Total Test Values (4): | 32,359,639 | 34,053,434 |
Margin of Error
| Margin of Error Percent: | 5.0000009 |
|---|---|
| Margin of Error Value: | 1,702,672 |
Confidence Interval Values (5)
| State Lower Limit: | 32,350,762 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 32,359,639 | (Within Confidence Interval) |
| State Upper Limit: | 35,756,106 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 31,601,675 | (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