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2011 Confidence Interval Detail
209/Shackelford
127-905/Lueders-Avoca ISD

Category Summary

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

Stratum
Variance
D3 4,028,366 0.8865 4,544,124 14 313 .002438945
G1 1,613,920 1.0009 1,612,469 6 17 .012276816
G1 1,496,130 0.9753 1,534,020 3 5 .012382356
G1 2,055,860 1.0223 2,011,014 2 3 .003678177
Random Totals: 9,194,276   9,701,627 25 338  
Catg J Exception Values: 528,326   529,892      
Catg D1 Exception Values: 4,165,369   4,355,304      
Catg G1 Exception Values: 1,014,430   1,053,357      
Total Test Values (4): 14,902,401   15,640,180      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 782,009

Confidence Interval Values (5)

State Lower Limit: 14,858,171 (State Test Value minus Margin of Error Percent)
Local Test Value: 14,902,401 (Within Confidence Interval)
State Upper Limit: 16,422,189 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 21,595,139 (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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