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2009 Confidence Interval Detail
025/Brown
025-901/Bangs ISD

Category Summary

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

Stratum
Variance
A 36,037,896 0.8659 41,619,005 21 1,112 .101708649
A 36,222,750 0.9500 38,129,211 19 529 .116031119
A 38,061,265 1.0089 37,725,508 18 304 .012355522
A 42,366,260 0.9809 43,191,212 18 164 .018527749
D3 68,141,331 0.9196 74,098,881 32 2,887 .020032014
Random Totals: 220,829,502   234,763,817 108 4,996  
Catg J Exception Values: 12,425,689   12,295,023      
Catg D1 Exception Values: 7,820,390   7,933,135      
Total Test Values (4): 241,075,581   254,991,975      

Margin of Error

Margin of Error Percent: 5.0000001
Margin of Error Value: 12,749,599

Confidence Interval Values (5)

Local Test Value: 241,075,581 (Outside Confidence Interval)
State Lower Limit: 242,242,376 (State Test Value minus Margin of Error Percent)
State Upper Limit: 267,741,574 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 250,218,709 (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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