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2009 Confidence Interval Detail
174/Nacogdoches
174-910/Etoile ISD

Category Summary

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

Stratum
Variance
A 8,324,210 0.8747 9,516,646 15 235 .070001911
A 8,324,510 0.8836 9,421,129 17 127 .036639377
A 7,698,500 0.9073 8,485,066 16 78 .008116671
A 12,143,330 0.8790 13,814,937 15 74 .015611391
C 675,650 1.1081 609,737 7 232 .020376841
C 1,295,790 1.1763 1,101,581 9 280 .074054546
C 748,310 0.9469 790,274 6 71 .008141978
C 1,756,210 1.0788 1,627,929 7 57 .033864172
D3 7,706,160 1.0086 7,640,452 18 489 .035309072
Random Totals: 48,672,670   53,007,751 110 1,643  
Catg D1 Exception Values: 7,118,700   4,990,091      
Total Test Values (4): 55,791,370   57,997,842      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 2,899,892

Confidence Interval Values (5)

State Lower Limit: 55,097,950 (State Test Value minus Margin of Error Percent)
Local Test Value: 55,791,370 (Within Confidence Interval)
State Upper Limit: 60,897,734 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 44,070,564 (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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