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2010 Confidence Interval Detail
039/Clay
039-901/Byers ISD

Category Summary

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

Stratum
Variance
A 3,148,110 0.9403 3,347,985 11 91 .012971822
A 2,992,550 0.9909 3,020,032 12 48 .005483368
A 3,148,920 0.9996 3,150,180 9 36 .001216845
A 3,059,270 1.0830 2,824,811 8 22 .032170573
D3 5,193,410 0.9098 5,708,299 24 487 .106996408
Random Totals: 17,542,260   18,051,307 64 684  
Catg J Exception Values: 1,272,147   1,293,194      
Catg D1 Exception Values: 4,409,930   4,726,504      
Total Test Values (4): 23,224,337   24,071,005      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 1,203,550

Confidence Interval Values (5)

State Lower Limit: 22,867,455 (State Test Value minus Margin of Error Percent)
Local Test Value: 23,224,337 (Within Confidence Interval)
State Upper Limit: 25,274,555 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 23,417,325 (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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