2007 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 | 26,366,400 | 1.0909 | 24,169,401 | 12 | 881 | .053074542 |
| Random Totals: | 26,366,400 | 24,169,401 | 12 | 881 | ||
| Catg J Exception Values: | 1,999,880 | 2,027,904 | ||||
| Catg D1 Exception Values: | 4,903,810 | 4,145,392 | ||||
| Total Test Values (4): | 33,270,090 | 30,342,697 |
Margin of Error
| Margin of Error Percent: | 11.5746764 |
|---|---|
| Margin of Error Value: | 3,512,069 |
Confidence Interval Values (5)
| State Lower Limit: | 26,830,628 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 33,270,090 | (Within Confidence Interval) |
| State Upper Limit: | 33,854,766 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 33,868,390 | (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
