2006 Confidence Interval Detail
240/Webb
240-904/Webb CISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| D3 | 32,373,901 | 0.9584 | 33,779,112 | 17 | 2,409 | .017218706 |
| G1 | 413,672,299 | 1.3358 | 309,681,314 | 15 | 491 | .050707646 |
| G1 | 414,180,265 | 1.1919 | 347,495,818 | 15 | 214 | .022614917 |
| G1 | 413,437,449 | 1.1700 | 353,365,341 | 15 | 129 | .027939470 |
| G1 | 410,224,995 | 1.1779 | 348,268,100 | 15 | 65 | .029768731 |
| Random Totals: | 1,683,888,909 | 1,392,589,685 | 77 | 3,308 | ||
| Catg D1 Exception Values: | 23,459,039 | 38,284,558 | ||||
| Total Test Values (4): | 1,707,347,948 | 1,430,874,243 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 71,543,712 |
Confidence Interval Values (5)
| State Lower Limit: | 1,359,330,531 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| State Upper Limit: | 1,502,417,955 | (State Test Value plus Margin of Error Percent) |
| Local Test Value: | 1,707,347,948 | (Outside Confidence Interval) |
| Value Assigned (6): | 1,905,221,797 | (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