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2008 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 1,194,550 0.9820 1,216,446 6 27 .003003136
A 1,205,440 0.9573 1,259,208 8 18 .008975488
A 1,447,290 0.9843 1,470,375 6 14 .006947533
A 1,238,930 0.9938 1,246,659 5 7 .007064990
D3 42,358,170 0.9633 43,971,940 37 1,245 .029713841
Random Totals: 47,444,380   49,164,628 62 1,311  
Catg J Exception Values: 4,293,266   4,381,487      
Catg D1 Exception Values: 8,468,280   5,909,220      
Total Test Values (4): 60,205,926   59,455,335      

Margin of Error

Margin of Error Percent: 5.0000004
Margin of Error Value: 2,972,767

Confidence Interval Values (5)

State Lower Limit: 56,482,568 (State Test Value minus Margin of Error Percent)
Local Test Value: 60,205,926 (Within Confidence Interval)
State Upper Limit: 62,428,102 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 70,878,453 (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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