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2007 Confidence Interval Detail
008/Austin
008-903/Brazos ISD

Category Summary

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

Stratum
Variance
A 18,974,032 0.8639 21,963,227 8 428 .046216768
A 18,908,819 0.9199 20,555,298 7 237 .006509711
A 18,981,625 0.9984 19,012,044 7 173 .020251565
A 18,901,124 0.9684 19,517,889 7 112 .010497619
D3 57,412,347 1.0020 57,297,751 10 2,311 .015290735
G1 53,427,540 0.9533 56,044,834 5 20 .024007578
G1 54,077,030 1.0399 52,002,144 3 6 .002102898
G1 47,314,550 1.9070 24,810,986 2 3 1.011597078
Random Totals: 287,997,067   271,204,173 49 3,290  
Catg J Exception Values: 19,437,141   19,485,260      
Catg D1 Exception Values: 10,588,101   9,135,578      
Catg G1 Exception Values: 46,650,490   47,009,294      
Total Test Values (4): 364,672,799   346,834,305      

Margin of Error

Margin of Error Percent: 6.5136879
Margin of Error Value: 22,591,704

Confidence Interval Values (5)

State Lower Limit: 324,242,601 (State Test Value minus Margin of Error Percent)
Local Test Value: 364,672,799 (Within Confidence Interval)
State Upper Limit: 369,426,009 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 391,216,651 (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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