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2011 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 15,645,883 0.9163 17,075,066 11 285 .017632208
A 17,944,322 0.9612 18,668,666 12 153 .006612048
A 15,030,590 0.9653 15,570,900 11 97 .000842429
A 15,031,158 0.9657 15,565,039 11 72 .007133374
D3 46,973,040 1.1812 39,767,220 15 1,333 .116557583
L1 3,843,380 1.0635 3,613,898 8 28 .015516323
Random Totals: 114,468,373   110,260,789 68 1,968  
Catg D1 Exception Values: 1,988,670   1,995,400      
Catg L1 Exception Values: 1,625,450   1,631,402      
Total Test Values (4): 118,082,493   113,887,591      

Margin of Error

Margin of Error Percent: 6.3026629
Margin of Error Value: 7,177,951

Confidence Interval Values (5)

State Lower Limit: 106,709,640 (State Test Value minus Margin of Error Percent)
Local Test Value: 118,082,493 (Within Confidence Interval)
State Upper Limit: 121,065,542 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 130,695,043 (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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