2008 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 | 54,340,288 | 1.0189 | 53,332,307 | 16 | 849 | .042480419 |
| A | 55,032,320 | 1.0303 | 53,413,879 | 17 | 464 | .037783438 |
| A | 59,389,500 | 1.0388 | 57,171,255 | 13 | 358 | .017542527 |
| A | 70,892,680 | 0.9800 | 72,339,469 | 15 | 275 | .007726239 |
| D3 | 244,676,609 | 1.0171 | 240,562,982 | 58 | 7,207 | .018578109 |
| F1 | 16,237,480 | 0.8961 | 18,120,165 | 7 | 164 | .175273202 |
| F1 | 16,518,320 | 0.7804 | 21,166,479 | 6 | 56 | .021033065 |
| F1 | 12,845,420 | 0.8742 | 14,693,914 | 6 | 18 | .075620181 |
| F1 | 23,073,660 | 0.9049 | 25,498,574 | 4 | 15 | .010533758 |
| G1 | 7,154,313 | 0.7821 | 9,147,568 | 5 | 16 | .042971974 |
| G1 | 6,230,533 | 1.0228 | 6,091,644 | 4 | 7 | .013126574 |
| G1 | 6,970,420 | 1.3224 | 5,271,038 | 3 | 5 | .090893127 |
| Random Totals: | 573,361,543 | 576,809,274 | 154 | 9,434 | ||
| Catg J Exception Values: | 20,408,533 | 20,511,178 | ||||
| Catg D1 Exception Values: | 23,662,888 | 21,247,948 | ||||
| Catg G1 Exception Values: | 26,358,786 | 24,508,218 | ||||
| Total Test Values (4): | 643,791,750 | 643,076,618 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 32,153,831 |
Confidence Interval Values (5)
| State Lower Limit: | 610,922,787 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 643,791,750 | (Within Confidence Interval) |
| State Upper Limit: | 675,230,449 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 704,594,557 | (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