2009 Confidence Interval Detail
072/Erath
072-901/Three-Way ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| D3 | 29,342,330 | 0.9937 | 29,528,359 | 30 | 821 | .080031406 |
| Random Totals: | 29,342,330 | 29,528,359 | 30 | 821 | ||
| Catg J Exception Values: | 1,891,720 | 1,929,998 | ||||
| Catg D1 Exception Values: | 4,787,250 | 4,391,285 | ||||
| Total Test Values (4): | 36,021,300 | 35,849,642 |
Margin of Error
| Margin of Error Percent: | 8.5395330 |
|---|---|
| Margin of Error Value: | 3,061,392 |
Confidence Interval Values (5)
| State Lower Limit: | 32,788,250 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 36,021,300 | (Within Confidence Interval) |
| State Upper Limit: | 38,911,034 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 40,936,005 | (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