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2007 Confidence Interval Detail
019/Bowie
019-909/Simms ISD

Category Summary

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

Stratum
Variance
A 5,945,323 0.8882 6,693,676 9 159 .020670186
A 5,973,668 0.9650 6,190,330 9 84 .009772329
A 5,956,035 0.9972 5,972,759 9 52 .012750989
A 5,881,699 1.0553 5,573,485 9 25 .004232878
D3 50,809,870 1.0477 48,496,583 21 2,105 .045047476
Random Totals: 74,566,595   72,926,833 57 2,425  
Catg J Exception Values: 4,743,358   4,591,369      
Catg D1 Exception Values: 8,129,990   6,851,122      
Total Test Values (4): 87,439,943   84,369,324      

Margin of Error

Margin of Error Percent: 5.4090335
Margin of Error Value: 4,563,565

Confidence Interval Values (5)

State Lower Limit: 79,805,759 (State Test Value minus Margin of Error Percent)
Local Test Value: 87,439,943 (Within Confidence Interval)
State Upper Limit: 88,932,889 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 77,200,999 (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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