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2009 Confidence Interval Detail
074/Fannin
074-917/Sam Rayburn ISD

Category Summary

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

Stratum
Variance
A 6,853,260 0.9631 7,115,834 7 176 .006491242
A 7,307,770 0.8737 8,364,164 7 109 .051195718
A 6,443,180 0.9979 6,456,739 6 65 .008854281
A 7,564,840 1.0058 7,521,217 6 43 .029873916
D3 59,674,440 1.0302 57,925,102 22 2,276 .030338922
Random Totals: 87,843,490   87,383,056 48 2,669  
Catg D1 Exception Values: 6,917,890   6,547,251      
Total Test Values (4): 94,761,380   93,930,307      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 4,696,515

Confidence Interval Values (5)

State Lower Limit: 89,233,792 (State Test Value minus Margin of Error Percent)
Local Test Value: 94,761,380 (Within Confidence Interval)
State Upper Limit: 98,626,822 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 80,379,169 (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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