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2009 Confidence Interval Detail
019/Bowie
019-901/DeKalb ISD

Category Summary

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

Stratum
Variance
A 15,616,325 0.9977 15,652,325 7 433 .023896922
A 16,340,673 1.0612 15,398,297 7 244 .023986762
A 17,365,861 1.0171 17,073,897 7 183 .004400951
A 20,837,403 0.9024 23,091,094 7 135 .013086660
D3 78,555,885 1.0175 77,204,801 24 3,604 .080838702
F1 2,800,519 0.8885 3,151,963 6 41 .064516350
F1 3,620,929 0.7457 4,855,745 5 21 .017743267
F1 2,969,451 0.9094 3,265,286 4 8 .007938251
Random Totals: 158,107,046   159,693,408 67 4,669  
Catg D1 Exception Values: 17,633,833   14,963,348      
Catg F1 Exception Values: 2,877,309   3,449,752      
Total Test Values (4): 178,618,188   178,106,508      

Margin of Error

Margin of Error Percent: 5.3670212
Margin of Error Value: 9,559,014

Confidence Interval Values (5)

State Lower Limit: 168,547,494 (State Test Value minus Margin of Error Percent)
Local Test Value: 178,618,188 (Within Confidence Interval)
State Upper Limit: 187,665,522 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 161,552,433 (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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