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2008 Confidence Interval Detail
072/Erath
072-901/Three-Way ISD

Category Summary

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

Stratum
Variance
D3 25,101,760 1.0216 24,571,026 28 817 .053680677
Random Totals: 25,101,760   24,571,026 28 817  
Catg J Exception Values: 1,967,450   1,997,817      
Catg D1 Exception Values: 5,666,260   4,018,186      
Total Test Values (4): 32,735,470   30,587,029      

Margin of Error

Margin of Error Percent: 7.0859383
Margin of Error Value: 2,167,378

Confidence Interval Values (5)

State Lower Limit: 28,419,651 (State Test Value minus Margin of Error Percent)
Local Test Value: 32,735,470 (Within Confidence Interval)
State Upper Limit: 32,754,407 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 33,306,539 (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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