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2010 Confidence Interval Detail
018/Bosque
018-907/Kopperl ISD

Category Summary

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

Stratum
Variance
A 10,673,430 0.9579 11,142,531 13 287 .010102492
A 10,905,730 0.9644 11,308,306 9 157 .006744523
A 10,718,480 0.9781 10,958,471 9 104 .004031686
A 10,429,660 1.0275 10,150,521 10 64 .003190694
D3 39,069,130 0.9824 39,769,066 31 1,001 .048902373
Random Totals: 81,796,430   83,328,895 72 1,613  
Catg J Exception Values: 4,781,540   4,854,263      
Catg D1 Exception Values: 4,187,550   3,842,394      
Total Test Values (4): 90,765,520   92,025,552      

Margin of Error

Margin of Error Percent: 5.0000004
Margin of Error Value: 4,601,278

Confidence Interval Values (5)

State Lower Limit: 87,424,274 (State Test Value minus Margin of Error Percent)
Local Test Value: 90,765,520 (Within Confidence Interval)
State Upper Limit: 96,626,830 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 103,433,922 (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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