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2009 Confidence Interval Detail
181/Orange
181-905/Orangefield ISD

Category Summary

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

Stratum
Variance
A 49,850,365 1.0081 49,449,821 15 768 .064672914
A 54,277,815 0.9335 58,144,419 16 468 .054077086
A 60,757,138 0.9731 62,436,685 15 382 .028261233
A 59,888,919 0.9597 62,403,792 16 257 .005871596
D3 25,244,943 0.9600 26,296,816 20 1,304 .022872880
F1 7,176,295 0.8068 8,894,763 6 44 .096313174
F1 4,837,173 0.8854 5,463,263 5 11 .021919512
F1 6,824,219 1.2035 5,670,311 5 9 .065743220
G1 6,091,710 0.8148 7,476,325 6 34 .013932711
Random Totals: 274,948,577   286,236,195 104 3,277  
Catg J Exception Values: 12,196,813   12,116,621      
Catg D1 Exception Values: 3,138,444   3,794,570      
Catg F1 Exception Values: 6,251,735   5,792,539      
Catg G1 Exception Values: 9,221,640   8,383,855      
Total Test Values (4): 305,757,209   316,323,780      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 15,816,189

Confidence Interval Values (5)

State Lower Limit: 300,507,591 (State Test Value minus Margin of Error Percent)
Local Test Value: 305,757,209 (Within Confidence Interval)
State Upper Limit: 332,139,969 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 386,494,696 (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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