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2009 Confidence Interval Detail
129/Kaufman
129-910/Scurry-Rosser ISD

Category Summary

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

Stratum
Variance
A 25,034,550 0.9852 25,410,627 9 408 .044748969
A 24,007,090 0.9331 25,728,314 10 221 .008623642
A 24,685,400 0.9825 25,125,089 10 163 .012462446
A 26,685,980 1.0099 26,424,379 9 116 .006557541
D3 47,235,740 1.1319 41,731,372 22 1,736 .044767717
Random Totals: 147,648,760   144,419,781 60 2,644  
Catg D1 Exception Values: 5,153,470   3,309,510      
Total Test Values (4): 152,802,230   147,729,291      

Margin of Error

Margin of Error Percent: 5.0000003
Margin of Error Value: 7,386,465

Confidence Interval Values (5)

State Lower Limit: 140,342,826 (State Test Value minus Margin of Error Percent)
Local Test Value: 152,802,230 (Within Confidence Interval)
State Upper Limit: 155,115,756 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 159,216,797 (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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