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2008 Confidence Interval Detail
187/Polk
187-910/Onalaska ISD

Category Summary

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

Stratum
Variance
A 57,129,391 0.6762 84,485,938 24 1,761 .155749652
A 57,900,149 0.7081 81,768,322 19 812 .164783869
A 58,590,712 0.5866 99,881,882 21 503 .056427353
A 60,899,800 0.6890 88,388,679 15 272 .071671812
C 8,710,197 0.7706 11,303,137 22 3,331 .202480356
C 8,471,887 0.9799 8,645,665 16 1,659 .248320577
C 9,169,153 0.5085 18,031,766 10 683 .192891762
C 11,529,243 1.0327 11,164,174 8 179 .053846135
F1 5,176,766 0.6646 7,789,296 7 75 .200288900
F1 4,499,004 0.8318 5,408,757 6 26 .025995159
F1 5,569,509 0.7184 7,752,657 7 16 .275880910
F1 4,488,740 0.8748 5,131,161 5 6 .004719613
Random Totals: 292,134,551   429,751,434 160 9,323  
Catg D1 Exception Values: 3,473,322   3,416,626      
Total Test Values (4): 295,607,873   433,168,060      

Margin of Error

Margin of Error Percent: 5.9956586
Margin of Error Value: 25,971,278

Confidence Interval Values (5)

Local Test Value: 295,607,873 (Outside Confidence Interval)
State Lower Limit: 407,196,782 (State Test Value minus Margin of Error Percent)
State Upper Limit: 459,139,338 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 398,143,705 (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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