2007 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 | 2,337,726 | 1.0444 | 2,238,344 | 15 | 79 | .048587880 |
| A | 2,338,883 | 1.0408 | 2,247,197 | 15 | 44 | .033060322 |
| A | 2,336,309 | 1.0956 | 2,132,447 | 14 | 28 | .026016443 |
| A | 2,251,383 | 1.0881 | 2,069,096 | 9 | 14 | .005442525 |
| D3 | 8,009,251 | 1.0213 | 7,842,212 | 20 | 413 | .025635710 |
| F1 | 2,257,119 | 0.5348 | 4,220,492 | 13 | 37 | .591580997 |
| Random Totals: | 19,530,671 | 20,749,788 | 86 | 615 | ||
| Catg J Exception Values: | 1,973,725 | 1,977,727 | ||||
| Catg D1 Exception Values: | 2,041,046 | 1,661,793 | ||||
| Total Test Values (4): | 23,545,442 | 24,389,308 |
Margin of Error
| Margin of Error Percent: | 6.4580840 |
|---|---|
| Margin of Error Value: | 1,575,082 |
Confidence Interval Values (5)
| State Lower Limit: | 22,814,226 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 23,545,442 | (Within Confidence Interval) |
| State Upper Limit: | 25,964,390 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 45,813,897 | (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