2009 Confidence Interval Detail
081/Freestone
081-905/Wortham ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 4,871,770 | 0.9866 | 4,937,938 | 15 | 140 | .003262288 |
| A | 5,791,920 | 0.9677 | 5,985,243 | 16 | 101 | .002058900 |
| A | 5,998,140 | 0.9640 | 6,222,137 | 16 | 76 | .001475522 |
| A | 9,079,690 | 0.9873 | 9,196,485 | 23 | 69 | .004525979 |
| D3 | 22,276,430 | 0.9639 | 23,110,727 | 21 | 1,372 | .002699254 |
| Random Totals: | 48,017,950 | 49,452,530 | 91 | 1,758 | ||
| Catg J Exception Values: | 34,162,610 | 35,101,620 | ||||
| Catg D1 Exception Values: | 3,760,460 | 2,869,464 | ||||
| Total Test Values (4): | 85,941,020 | 87,423,614 |
Margin of Error
| Margin of Error Percent: | 5.0000003 |
|---|---|
| Margin of Error Value: | 4,371,181 |
Confidence Interval Values (5)
| State Lower Limit: | 83,052,433 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 85,941,020 | (Within Confidence Interval) |
| State Upper Limit: | 91,794,795 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 127,646,548 | (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