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2010 Confidence Interval Detail
039/Clay
005-904/Windthorst ISD

Category Summary

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

Stratum
Variance
A 3,955,230 0.9847 4,016,685 12 37 .011035789
D3 5,105,430 0.9501 5,373,571 23 225 .037829070
G1 620,570 0.9698 639,895 10 11 .024665155
Random Totals: 9,681,230   10,030,151 45 273  
Catg J Exception Values: 330,680   313,418      
Catg D1 Exception Values: 1,186,790   1,236,345      
Catg G1 Exception Values: 610,530   628,022      
Total Test Values (4): 11,809,230   12,207,936      

Margin of Error

Margin of Error Percent: 5.0000016
Margin of Error Value: 610,397

Confidence Interval Values (5)

State Lower Limit: 11,597,539 (State Test Value minus Margin of Error Percent)
Local Test Value: 11,809,230 (Within Confidence Interval)
State Upper Limit: 12,818,333 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 10,934,521 (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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