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2011 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 79,110,292 0.8954 88,351,901 23 1,784 .310413687
A 78,785,913 0.9919 79,429,290 11 778 .098612302
A 79,862,253 0.8042 99,306,457 12 446 .067517261
A 85,135,896 0.8368 101,739,837 11 245 .074422330
C 12,428,627 0.7836 15,860,933 10 3,992 .273391925
C 11,513,963 0.8677 13,269,521 11 1,097 .365347002
C 10,725,270 0.8622 12,439,422 12 192 .138596200
C 9,586,380 0.9882 9,700,850 11 72 .045995638
F1 5,923,006 0.8679 6,824,526 9 78 .058974277
F1 5,286,112 0.8558 6,176,808 7 26 .242116064
F1 5,512,253 1.1732 4,698,477 6 14 .102803598
F1 6,257,498 1.0688 5,854,695 3 6 .079925590
Random Totals: 390,127,463   443,652,717 126 8,730  
Catg D1 Exception Values: 3,025,246   2,687,553      
Total Test Values (4): 393,152,709   446,340,270      

Margin of Error

Margin of Error Percent: 7.6475690
Margin of Error Value: 34,134,180

Confidence Interval Values (5)

Local Test Value: 393,152,709 (Outside Confidence Interval)
State Lower Limit: 412,206,090 (State Test Value minus Margin of Error Percent)
State Upper Limit: 480,474,450 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 426,456,984 (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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