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2010 Confidence Interval Detail
019/Bowie
019-913/Hubbard ISD

Category Summary

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

Stratum
Variance
A 1,652,143 1.0004 1,651,482 8 43 .009333239
A 1,525,950 0.9790 1,558,682 7 21 .007060693
A 1,423,592 0.9574 1,486,935 6 14 .014368899
A 1,855,625 1.0275 1,805,961 5 12 .001664438
D3 13,932,138 1.0726 12,989,127 20 461 .088267998
Random Totals: 20,389,448   19,492,187 46 551  
Catg J Exception Values: 490,840   426,755      
Catg D1 Exception Values: 1,165,104   890,241      
Total Test Values (4): 22,045,392   20,809,183      

Margin of Error

Margin of Error Percent: 8.2174298
Margin of Error Value: 1,709,980

Confidence Interval Values (5)

State Lower Limit: 19,099,203 (State Test Value minus Margin of Error Percent)
Local Test Value: 22,045,392 (Within Confidence Interval)
State Upper Limit: 22,519,163 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 17,752,144 (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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