2009 Confidence Interval Detail
039/Clay
005-904/Windthorst ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 3,691,810 | 1.0193 | 3,621,907 | 10 | 40 | .001731162 |
| D3 | 4,839,960 | 1.0333 | 4,683,983 | 10 | 222 | .108884055 |
| Random Totals: | 8,531,770 | 8,305,890 | 20 | 262 | ||
| Catg D1 Exception Values: | 1,202,790 | 1,204,310 | ||||
| Total Test Values (4): | 9,734,560 | 9,510,200 |
Margin of Error
| Margin of Error Percent: | 10.5866123 |
|---|---|
| Margin of Error Value: | 1,006,808 |
Confidence Interval Values (5)
| State Lower Limit: | 8,503,392 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 9,734,560 | (Within Confidence Interval) |
| State Upper Limit: | 10,517,008 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 10,074,490 | (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