2007 Confidence Interval Detail
045/Colorado
045-902/Columbus ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 56,472,878 | 1.0372 | 54,447,433 | 15 | 891 | .041011135 |
| A | 56,531,126 | 0.9833 | 57,491,230 | 12 | 467 | .008388050 |
| A | 56,495,178 | 0.9893 | 57,106,214 | 10 | 329 | .029982404 |
| A | 56,260,518 | 0.9741 | 57,756,409 | 9 | 213 | .014381954 |
| D3 | 227,932,764 | 0.9951 | 229,055,134 | 50 | 7,427 | .024692564 |
| F1 | 15,657,058 | 0.8491 | 18,439,593 | 10 | 169 | .094643932 |
| F1 | 15,981,067 | 0.9164 | 17,438,964 | 7 | 52 | .019383481 |
| F1 | 15,048,568 | 0.8913 | 16,883,842 | 5 | 19 | .020863697 |
| F1 | 15,544,386 | 0.9795 | 15,869,715 | 6 | 9 | .003247781 |
| G1 | 3,864,091 | 1.0851 | 3,561,046 | 3 | 11 | .015108904 |
| G1 | 4,661,067 | 0.9187 | 5,073,546 | 5 | 7 | .030686456 |
| G1 | 4,169,986 | 0.9823 | 4,245,125 | 2 | 3 | .000126654 |
| Random Totals: | 528,618,687 | 537,368,251 | 134 | 9,597 | ||
| Catg J Exception Values: | 22,339,503 | 21,666,429 | ||||
| Catg D1 Exception Values: | 23,693,831 | 21,962,373 | ||||
| Catg G1 Exception Values: | 23,283,020 | 21,644,429 | ||||
| Total Test Values (4): | 597,935,041 | 602,641,482 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 30,132,074 |
Confidence Interval Values (5)
| State Lower Limit: | 572,509,408 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 597,935,041 | (Within Confidence Interval) |
| State Upper Limit: | 632,773,556 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 629,550,902 | (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