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2009 Confidence Interval Detail
174/Nacogdoches
174-901/Chireno ISD

Category Summary

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

Stratum
Variance
A 2,640,730 0.9686 2,726,337 7 82 .057747053
A 3,793,790 0.9724 3,901,471 11 65 .009471924
A 4,014,540 0.8900 4,510,719 7 45 .074687030
A 4,210,070 0.9689 4,345,206 8 26 .015350196
D3 19,521,000 0.8936 21,845,345 20 1,211 .034815073
G1 10,881,952 0.9971 10,913,601 10 18 .019662994
Random Totals: 45,062,082   48,242,679 63 1,447  
Catg D1 Exception Values: 9,635,000   5,561,401      
Total Test Values (4): 54,697,082   53,804,080      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 2,690,204

Confidence Interval Values (5)

State Lower Limit: 51,113,876 (State Test Value minus Margin of Error Percent)
Local Test Value: 54,697,082 (Within Confidence Interval)
State Upper Limit: 56,494,284 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 53,184,843 (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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