2007 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 | 63,407,591 | 1.0054 | 63,067,029 | 24 | 729 | .001200560 |
| A | 63,207,689 | 1.0082 | 62,693,601 | 25 | 384 | .007029713 |
| A | 63,377,335 | 0.9986 | 63,466,188 | 24 | 295 | .000845437 |
| A | 63,142,638 | 0.9754 | 64,735,122 | 24 | 217 | .007843971 |
| C | 6,786,836 | 0.9666 | 7,021,349 | 11 | 332 | .088953148 |
| C | 4,884,579 | 0.9100 | 5,367,669 | 7 | 136 | .026112581 |
| C | 5,927,411 | 1.0866 | 5,455,007 | 8 | 120 | .026698112 |
| C | 5,707,140 | 0.9912 | 5,757,809 | 6 | 46 | .000862238 |
| D3 | 99,492,171 | 0.7742 | 128,509,650 | 22 | 2,530 | .323872054 |
| Random Totals: | 375,933,390 | 406,073,424 | 151 | 4,789 | ||
| Catg D1 Exception Values: | 4,215,265 | 4,022,591 | ||||
| Total Test Values (4): | 380,148,655 | 410,096,015 |
Margin of Error
| Margin of Error Percent: | 7.4682099 |
|---|---|
| Margin of Error Value: | 30,626,831 |
Confidence Interval Values (5)
| State Lower Limit: | 379,469,184 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 380,148,655 | (Within Confidence Interval) |
| State Upper Limit: | 440,722,846 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 409,340,030 | (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