2006 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 | 51,039,802 | 0.9642 | 52,934,870 | 22 | 891 | .020091859 |
| A | 51,092,447 | 0.9927 | 51,468,165 | 12 | 467 | .006190659 |
| A | 51,059,957 | 0.9454 | 54,008,840 | 10 | 329 | .007613695 |
| A | 50,847,873 | 0.9979 | 50,954,878 | 7 | 213 | .002248027 |
| D3 | 193,664,494 | 0.9726 | 199,120,393 | 56 | 7,343 | .040962770 |
| F1 | 14,932,511 | 0.9123 | 16,367,983 | 7 | 162 | .002982700 |
| F1 | 15,066,413 | 0.9908 | 15,206,311 | 8 | 50 | .001969676 |
| F1 | 15,001,373 | 0.9845 | 15,237,555 | 8 | 19 | .003581730 |
| F1 | 14,191,945 | 1.0163 | 13,964,326 | 4 | 8 | .001013064 |
| G1 | 8,313,945 | 1.0879 | 7,642,196 | 5 | 20 | .060446440 |
| G1 | 7,298,455 | 1.0046 | 7,265,036 | 3 | 5 | .000274004 |
| G1 | 6,837,179 | 2.7810 | 2,458,533 | 2 | 3 | .179685132 |
| Random Totals: | 479,346,394 | 486,629,086 | 144 | 9,510 | ||
| Catg J Exception Values: | 23,355,151 | 25,344,893 | ||||
| Catg D1 Exception Values: | 24,062,821 | 22,248,245 | ||||
| Catg G1 Exception Values: | 17,116,002 | 17,198,082 | ||||
| Total Test Values (4): | 543,880,368 | 551,420,306 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 27,571,015 |
Confidence Interval Values (5)
| State Lower Limit: | 523,849,291 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 543,880,368 | (Within Confidence Interval) |
| State Upper Limit: | 578,991,321 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 576,467,670 | (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