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2009 Confidence Interval Detail
018/Bosque
018-908/Cranfills Gap ISD

Category Summary

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

Stratum
Variance
A 1,546,440 0.9342 1,655,363 6 51 .014186594
A 1,660,810 1.0345 1,605,423 6 32 .025090660
A 1,665,110 0.9593 1,735,755 5 20 .008782609
A 1,717,390 1.0189 1,685,533 4 11 .003833409
D3 40,305,420 0.9926 40,605,904 28 1,024 .010371468
Random Totals: 46,895,170   47,287,978 49 1,138  
Catg D1 Exception Values: 4,208,670   3,841,534      
Total Test Values (4): 51,103,840   51,129,512      

Margin of Error

Margin of Error Percent: 5.0000008
Margin of Error Value: 2,556,476

Confidence Interval Values (5)

State Lower Limit: 48,573,036 (State Test Value minus Margin of Error Percent)
Local Test Value: 51,103,840 (Within Confidence Interval)
State Upper Limit: 53,685,988 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 51,685,651 (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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