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2008 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 32,796,910 0.8620 38,047,459 17 683 .094635858
A 32,612,570 0.8870 36,767,272 17 334 .022963119
A 33,329,940 0.9541 34,933,382 17 229 .050607327
A 39,100,380 0.8633 45,291,764 16 161 .033524212
D3 58,676,460 0.8067 72,736,408 26 2,362 .247258239
F1 3,645,710 0.7038 5,180,037 6 55 .170582000
F1 2,738,790 0.8292 3,302,931 5 17 .073330726
F1 4,755,460 0.9514 4,998,381 5 16 .078635320
F1 3,270,030 1.0192 3,208,428 3 4 .016186847
Random Totals: 210,926,250   244,466,062 112 3,861  
Catg D1 Exception Values: 4,776,422   3,128,672      
Total Test Values (4): 215,702,672   247,594,734      

Margin of Error

Margin of Error Percent: 6.5779755
Margin of Error Value: 16,286,721

Confidence Interval Values (5)

Local Test Value: 215,702,672 (Outside Confidence Interval)
State Lower Limit: 231,308,013 (State Test Value minus Margin of Error Percent)
State Upper Limit: 263,881,455 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 208,751,366 (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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