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2006 Confidence Interval Detail
246/Williamson
246-902/Florence ISD

Category Summary

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

Stratum
Variance
A 24,339,836 0.9769 24,915,381 15 396 .007403985
A 24,186,018 0.9950 24,307,556 17 255 .008636986
A 24,371,431 0.9643 25,273,702 16 171 .014592379
A 24,149,512 0.9565 25,247,791 17 104 .004910656
D3 76,492,360 0.9602 79,662,945 21 1,915 .062418293
Random Totals: 173,539,157   179,407,375 86 2,841  
Catg D1 Exception Values: 5,431,714   5,066,730      
Total Test Values (4): 178,970,871   184,474,105      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 9,223,705

Confidence Interval Values (5)

State Lower Limit: 175,250,400 (State Test Value minus Margin of Error Percent)
Local Test Value: 178,970,871 (Within Confidence Interval)
State Upper Limit: 193,697,810 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 208,824,196 (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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