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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 111,244,721 0.6019 184,822,597 35 933 .075518840
A 374,881,951 0.7660 489,402,025 43 2,375 .107205358
C 8,710,197 0.8291 10,505,605 21 3,331 .217188073
C 8,471,887 0.8259 10,257,764 17 1,659 .595196345
C 9,169,153 0.5085 18,031,766 10 683 .192891762
C 11,529,243 1.0364 11,124,318 7 179 .063067042
F1 5,176,766 0.8562 6,046,211 7 75 .044112929
F1 4,499,004 0.9553 4,709,520 6 26 .006934935
F1 5,569,509 0.8477 6,570,142 6 16 .106025327
F1 4,488,740 0.9113 4,925,645 5 6 .008602583
Random Totals: 543,741,171   746,395,593 157 9,283  
Catg D1 Exception Values: 3,473,322   3,416,626      
Total Test Values (4): 547,214,493   749,812,219      

Margin of Error

Margin of Error Percent: 6.7663244
Margin of Error Value: 50,734,727

Confidence Interval Values (5)

Local Test Value: 547,214,493 (Outside Confidence Interval)
State Lower Limit: 699,077,492 (State Test Value minus Margin of Error Percent)
State Upper Limit: 800,546,946 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 378,697,597 (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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