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2009 Confidence Interval Detail
025/Brown
025-908/Brookesmith ISD

Category Summary

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

Stratum
Variance
A 594,340 1.0497 566,200 8 27 .024407715
A 793,510 1.0563 751,217 7 18 .004135137
A 636,990 1.0346 615,687 6 9 .014436284
A 942,010 0.9658 975,368 4 9 .006998232
D3 30,150,481 0.9723 31,009,443 33 1,479 .041002939
Random Totals: 33,117,331   33,917,915 58 1,542  
Catg J Exception Values: 4,645,860   4,566,174      
Catg D1 Exception Values: 6,864,507   6,930,836      
Total Test Values (4): 44,627,698   45,414,925      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 2,270,746

Confidence Interval Values (5)

State Lower Limit: 43,144,179 (State Test Value minus Margin of Error Percent)
Local Test Value: 44,627,698 (Within Confidence Interval)
State Upper Limit: 47,685,671 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 43,269,963 (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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