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2009 Confidence Interval Detail
072/Erath
097-903/Hico ISD

Category Summary

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

Stratum
Variance
A 655,210 0.9745 672,355 5 19 .004128835
A 1,092,540 0.9934 1,099,799 5 18 .020753399
A 966,990 1.0063 960,936 5 11 .007212415
A 698,320 1.0360 674,054 3 5 .028400510
D3 32,515,230 0.9394 34,612,763 28 933 .058007414
Random Totals: 35,928,290   38,019,907 46 986  
Catg D1 Exception Values: 3,862,380   3,505,037      
Total Test Values (4): 39,790,670   41,524,944      

Margin of Error

Margin of Error Percent: 7.5391673
Margin of Error Value: 3,130,635

Confidence Interval Values (5)

State Lower Limit: 38,394,309 (State Test Value minus Margin of Error Percent)
Local Test Value: 39,790,670 (Within Confidence Interval)
State Upper Limit: 44,655,579 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 37,241,852 (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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