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2006 Confidence Interval Detail
246/Williamson
246-905/Granger ISD

Category Summary

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

Stratum
Variance
A 10,573,495 0.9778 10,813,556 16 218 .020936409
A 10,569,428 0.9853 10,727,117 16 141 .010154764
A 10,520,504 1.0053 10,465,039 16 109 .005315678
A 10,526,343 1.0153 10,367,717 16 63 .004938669
D3 32,285,826 0.9842 32,804,131 26 1,539 .004742891
Random Totals: 74,475,596   75,177,560 90 2,070  
Catg J Exception Values: 5,558,336   5,243,000      
Catg D1 Exception Values: 11,709,473   12,046,077      
Total Test Values (4): 91,743,405   92,466,637      

Margin of Error

Margin of Error Percent: 5.0000002
Margin of Error Value: 4,623,332

Confidence Interval Values (5)

State Lower Limit: 87,843,305 (State Test Value minus Margin of Error Percent)
Local Test Value: 91,743,405 (Within Confidence Interval)
State Upper Limit: 97,089,969 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 86,281,194 (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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