2009 Confidence Interval Detail
043/Collin
043-918/Community ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 70,758,225 | 1.0226 | 69,194,431 | 10 | 900 | .021177046 |
| A | 76,655,472 | 0.9868 | 77,680,859 | 26 | 522 | .005512587 |
| A | 76,281,580 | 1.0139 | 75,235,802 | 21 | 412 | .003078310 |
| A | 70,805,938 | 1.0289 | 68,817,123 | 13 | 284 | .007373750 |
| D3 | 110,173,829 | 1.0093 | 109,158,654 | 14 | 2,675 | .014804295 |
| Random Totals: | 404,675,044 | 400,086,869 | 84 | 4,793 | ||
| Catg D1 Exception Values: | 4,109,872 | 4,017,860 | ||||
| Total Test Values (4): | 408,784,916 | 404,104,729 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 20,205,236 |
Confidence Interval Values (5)
| State Lower Limit: | 383,899,493 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 408,784,916 | (Within Confidence Interval) |
| State Upper Limit: | 424,309,965 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 453,397,187 | (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