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2008 Confidence Interval Detail
249/Wise
249-901/Alvord ISD

Category Summary

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

Stratum
Variance
A 13,991,840 1.0925 12,807,176 7 210 .061190011
A 14,861,360 0.9683 15,347,888 12 146 .009450134
A 13,995,670 0.9823 14,247,857 10 100 .001767699
A 10,817,120 0.9664 11,193,212 7 52 .006780137
D3 86,622,370 0.9850 87,941,492 31 2,219 .033309289
G1 15,229,400 0.9519 15,998,949 6 78 .070998983
G1 16,041,332 1.0408 15,412,502 6 17 .042902640
G1 16,143,304 1.0672 15,126,784 3 5 .003683225
Random Totals: 187,702,396   188,075,860 82 2,827  
Catg J Exception Values: 13,703,194   13,340,402      
Catg D1 Exception Values: 2,981,420   2,857,840      
Catg G1 Exception Values: 13,248,550   12,901,948      
Total Test Values (4): 217,635,560   217,176,050      

Margin of Error

Margin of Error Percent: 5.0000002
Margin of Error Value: 10,858,803

Confidence Interval Values (5)

State Lower Limit: 206,317,247 (State Test Value minus Margin of Error Percent)
Local Test Value: 217,635,560 (Within Confidence Interval)
State Upper Limit: 228,034,853 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 235,627,813 (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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