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2007 Confidence Interval Detail
250/Wood
250-906/Alba-Golden ISD

Category Summary

(1)
Category
(1)
Local
Value
(1)
Stratum
Ratio
(1)
State
Value
(2)
Sample
Size
(3)
Total
Parcels

Stratum
Variance
A 32,954,340 0.9518 34,623,177 15 695 .052796360
A 32,890,488 0.9008 36,512,531 16 334 .034284392
A 33,014,207 0.9017 36,613,294 16 223 .026883013
A 32,787,570 0.9912 33,078,662 15 127 .005800241
D3 61,961,552 0.8003 77,422,906 20 1,438 .084564111
F1 3,553,090 0.7867 4,516,448 6 58 .052093424
F1 3,394,866 0.7711 4,402,627 6 21 .047160028
F1 3,458,655 0.7279 4,751,552 4 10 .132061437
F1 3,407,978 0.9810 3,473,984 3 4 .048247419
Random Totals: 207,422,746   235,395,181 101 2,910  
Catg D1 Exception Values: 5,688,331   3,791,767      
Total Test Values (4): 213,111,077   239,186,948      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 11,959,347

Confidence Interval Values (5)

Local Test Value: 213,111,077 (Outside Confidence Interval)
State Lower Limit: 227,227,601 (State Test Value minus Margin of Error Percent)
State Upper Limit: 251,146,295 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 204,567,235 (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

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