2009 Confidence Interval Detail
225/Titus
225-905/Winfield ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 1,642,140 | 1.0048 | 1,634,295 | 7 | 63 | .016615481 |
| A | 2,346,321 | 0.9662 | 2,428,401 | 8 | 49 | .006643637 |
| A | 2,544,141 | 1.0300 | 2,470,040 | 8 | 34 | .011175974 |
| A | 3,199,765 | 1.0395 | 3,078,177 | 7 | 24 | .024078067 |
| D3 | 8,614,053 | 1.3480 | 6,390,247 | 16 | 453 | .790080370 |
| F1 | 3,556,016 | 0.9609 | 3,700,714 | 10 | 38 | .000472410 |
| Random Totals: | 21,902,436 | 19,701,874 | 56 | 661 | ||
| Catg J Exception Values: | 1,935,950 | 1,960,325 | ||||
| Catg D1 Exception Values: | 2,072,723 | 1,758,883 | ||||
| Total Test Values (4): | 25,911,109 | 23,421,082 |
Margin of Error
| Margin of Error Percent: | 12.0609927 |
|---|---|
| Margin of Error Value: | 2,824,815 |
Confidence Interval Values (5)
| State Lower Limit: | 20,596,267 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 25,911,109 | (Within Confidence Interval) |
| State Upper Limit: | 26,245,897 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 52,119,316 | (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