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2009 Confidence Interval Detail
074/Fannin
074-912/Trenton ISD

Category Summary

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

Stratum
Variance
A 15,181,700 0.9648 15,735,593 8 288 .002954399
A 16,961,860 1.0383 16,336,184 8 149 .003357984
A 14,323,440 0.9720 14,736,049 7 95 .007492766
A 17,361,450 0.9520 18,236,817 7 86 .021068109
D3 48,879,500 0.9448 51,735,288 26 1,357 .016893082
L1 1,408,150 0.9508 1,481,016 6 30 .037155121
Random Totals: 114,116,100   118,260,947 62 2,005  
Catg J Exception Values: 11,826,830   12,810,992      
Catg D1 Exception Values: 2,163,420   1,975,341      
Catg L1 Exception Values: 5,984,290   5,603,374      
Total Test Values (4): 134,090,640   138,650,654      

Margin of Error

Margin of Error Percent: 5.0000002
Margin of Error Value: 6,932,533

Confidence Interval Values (5)

State Lower Limit: 131,718,121 (State Test Value minus Margin of Error Percent)
Local Test Value: 134,090,640 (Within Confidence Interval)
State Upper Limit: 145,583,187 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 134,074,306 (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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