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2010 Confidence Interval Detail
087/Glasscock
087-901/Glasscock County ISD

Category Summary

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

Stratum
Variance
D3 22,901,450 0.8858 25,853,974 24 3,213 .017971337
G1 158,164,743 0.9576 165,167,860 15 256 .004862968
G1 157,692,738 1.0093 156,239,709 14 89 .012414384
G1 171,089,814 1.0950 156,246,405 10 26 .032187720
Random Totals: 509,848,745   503,507,948 63 3,584  
Catg J Exception Values: 14,177,049   14,678,356      
Catg D1 Exception Values: 21,672,120   62,556,069      
Catg G1 Exception Values: 315,297,511   309,398,580      
Total Test Values (4): 860,995,425   890,140,953      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 44,507,048

Confidence Interval Values (5)

State Lower Limit: 845,633,905 (State Test Value minus Margin of Error Percent)
Local Test Value: 860,995,425 (Within Confidence Interval)
State Upper Limit: 934,648,001 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 1,251,737,674 (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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