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2007 Confidence Interval Detail
210/Shelby
210-904/Tenaha ISD

Category Summary

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

Stratum
Variance
A 4,283,128 1.0368 4,131,103 14 160 .014731103
A 4,319,854 0.9569 4,514,426 12 96 .013841502
A 4,301,865 1.0323 4,167,262 11 63 .007389277
A 4,205,675 1.0393 4,046,642 10 36 .008436151
D3 18,034,335 0.9734 18,527,157 21 1,526 .038753681
F1 904,803 1.0490 862,539 6 33 .087408777
F1 985,192 1.0246 961,538 5 16 .038383293
F1 805,492 0.7975 1,010,021 3 5 .076234863
F1 894,199 0.7316 1,222,251 3 4 .080295275
Random Totals: 38,734,543   39,442,939 85 1,939  
Catg J Exception Values: 6,746,037   6,906,229      
Catg D1 Exception Values: 5,643,200   4,156,002      
Catg L1 Exception Values: 322,240   317,330      
Total Test Values (4): 51,446,020   50,822,500      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 2,541,125

Confidence Interval Values (5)

State Lower Limit: 48,281,375 (State Test Value minus Margin of Error Percent)
Local Test Value: 51,446,020 (Within Confidence Interval)
State Upper Limit: 53,363,625 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 67,976,863 (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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