2011 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 | 60,065,122 | 0.9504 | 63,199,834 | 13 | 861 | .020223885 |
| A | 60,331,441 | 0.9532 | 63,293,581 | 14 | 474 | .009363911 |
| A | 61,585,810 | 0.9787 | 62,926,137 | 12 | 346 | .006390460 |
| A | 63,287,960 | 1.0049 | 62,979,361 | 12 | 229 | .013532280 |
| D3 | 273,560,236 | 1.0199 | 268,222,606 | 21 | 7,465 | .011740918 |
| F1 | 21,265,990 | 0.9530 | 22,314,785 | 10 | 165 | .019035334 |
| F1 | 21,027,660 | 0.9597 | 21,910,660 | 9 | 45 | .007607819 |
| F1 | 25,181,380 | 0.9541 | 26,392,810 | 6 | 19 | .020750004 |
| F1 | 15,126,510 | 0.9264 | 16,328,271 | 4 | 5 | .002892446 |
| G1 | 18,093,313 | 0.9968 | 18,151,397 | 7 | 21 | .000678105 |
| G1 | 15,909,243 | 1.0351 | 15,369,764 | 3 | 4 | .004723536 |
| G1 | 22,001,924 | 1.0137 | 21,704,571 | 2 | 3 | .000011189 |
| Random Totals: | 657,436,589 | 662,793,777 | 113 | 9,637 | ||
| Catg J Exception Values: | 22,383,641 | 21,770,999 | ||||
| Catg D1 Exception Values: | 23,993,363 | 22,694,492 | ||||
| Catg G1 Exception Values: | 10,806,495 | 10,201,073 | ||||
| Total Test Values (4): | 714,620,088 | 717,460,341 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 35,873,017 |
Confidence Interval Values (5)
| State Lower Limit: | 681,587,324 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 714,620,088 | (Within Confidence Interval) |
| State Upper Limit: | 753,333,358 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 782,272,685 | (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