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2007 Confidence Interval Detail
050/Coryell
050-901/Evant ISD

Category Summary

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

Stratum
Variance
A 8,172,938 0.9530 8,576,010 8 211 .007843604
A 8,181,560 1.0088 8,110,190 8 133 .001733681
A 8,219,233 0.9711 8,463,838 7 91 .003219907
A 8,110,113 1.0529 7,702,643 7 49 .012721716
D3 27,578,967 1.0261 26,877,465 20 2,047 .014617125
Random Totals: 60,262,811   59,730,146 50 2,531  
Catg J Exception Values: 1,404,370   1,293,379      
Catg D1 Exception Values: 12,202,463   10,580,106      
Total Test Values (4): 73,869,644   71,603,631      

Margin of Error

Margin of Error Percent: 5.0000006
Margin of Error Value: 3,580,182

Confidence Interval Values (5)

State Lower Limit: 68,023,449 (State Test Value minus Margin of Error Percent)
Local Test Value: 73,869,644 (Within Confidence Interval)
State Upper Limit: 75,183,813 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 69,820,397 (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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