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2009 Confidence Interval Detail
019/Bowie
019-906/Redwater ISD

Category Summary

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

Stratum
Variance
A 30,257,296 1.0079 30,020,137 7 443 .014575797
A 35,431,485 0.9799 36,158,266 7 286 .010549918
A 35,906,295 0.9862 36,408,736 8 200 .001857087
A 39,003,057 0.9864 39,540,812 7 143 .002252322
D3 44,001,095 0.9303 47,297,748 23 1,228 .172617488
Random Totals: 184,599,228   189,425,699 52 2,300  
Catg D1 Exception Values: 2,529,524   2,082,351      
Total Test Values (4): 187,128,752   191,508,050      

Margin of Error

Margin of Error Percent: 5.0000003
Margin of Error Value: 9,575,403

Confidence Interval Values (5)

State Lower Limit: 181,932,647 (State Test Value minus Margin of Error Percent)
Local Test Value: 187,128,752 (Within Confidence Interval)
State Upper Limit: 201,083,453 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 187,909,967 (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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