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2011 Confidence Interval Detail
072/Erath
072-909/Lingleville ISD

Category Summary

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

Stratum
Variance
A 1,449,460 1.0191 1,422,294 12 32 .004819251
A 1,457,910 1.0232 1,424,853 10 20 .013145334
A 1,321,800 1.0051 1,315,093 7 12 .002188777
D3 45,288,620 0.9640 46,979,896 29 1,266 .026630558
Random Totals: 49,517,790   51,142,136 58 1,330  
Catg J Exception Values: 213,490   213,343      
Catg D1 Exception Values: 7,261,700   6,729,240      
Catg A Exception Values: 1,380,180   1,365,348      
Total Test Values (4): 58,373,160   59,450,067      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 2,972,503

Confidence Interval Values (5)

State Lower Limit: 56,477,564 (State Test Value minus Margin of Error Percent)
Local Test Value: 58,373,160 (Within Confidence Interval)
State Upper Limit: 62,422,570 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 68,944,636 (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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