taxes Property Tax Assistance

2017 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 66,337,869 0.9506 69,785,261 17 825 .029301147
A 71,875,551 0.9563 75,160,045 12 495 .015986810
A 77,385,210 0.9507 81,398,138 21 375 .014851697
A 84,746,870 0.9569 88,563,977 9 262 .002802828
E 382,971,642 0.9121 419,879,007 30 3,738 .047837593
F1 26,094,390 1.0288 25,363,909 9 164 .002557090
F1 28,381,290 0.9629 29,474,805 9 49 .037417018
F1 23,617,850 1.0649 22,178,467 7 18 .014909946
F1 34,206,720 1.0584 32,319,274 4 10 .005883489
Random Totals: 795,617,392   844,122,883 118 5,936  
Catg J Exception Values: 30,043,513   29,294,346      
Catg D1 Exception Values: 25,243,918   18,911,393      
Total Test Values (4): 850,904,823   892,328,622      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 44,616,431

Confidence Interval Values (5)

State Lower Limit: 847,712,191 (State Test Value minus Margin of Error Percent)
Local Test Value: 850,904,823 (Within Confidence Interval)
State Upper Limit: 936,945,053 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 1,034,482,427 (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, D2, E, 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