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2006 Confidence Interval Detail
072/Erath
072-909/Lingleville ISD

Category Summary

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

Stratum
Variance
A 1,042,061 1.1502 905,982 6 28 .071334109
A 1,022,795 0.9932 1,029,798 7 16 .008008881
A 976,747 0.9664 1,010,707 6 10 .005695362
D3 37,479,530 1.0652 35,185,439 24 1,323 .080634783
Random Totals: 40,521,133   38,131,926 43 1,377  
Catg J Exception Values: 3,746,760   4,271,156      
Catg D1 Exception Values: 8,268,430   6,891,475      
Catg A Exception Values: 906,790   942,510      
Total Test Values (4): 53,443,113   50,237,067      

Margin of Error

Margin of Error Percent: 8.1349733
Margin of Error Value: 4,086,772

Confidence Interval Values (5)

State Lower Limit: 46,150,295 (State Test Value minus Margin of Error Percent)
Local Test Value: 53,443,113 (Within Confidence Interval)
State Upper Limit: 54,323,839 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 56,546,438 (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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