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2010 Confidence Interval Detail
049/Cooke
049-909/Sivells Bend ISD

Category Summary

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

Stratum
Variance
A 11,713,053 0.9803 11,948,437 11 106 .004552263
A 13,125,256 0.9731 13,488,085 11 61 .005370835
A 16,838,178 0.9666 17,420,006 10 56 .010555560
A 16,487,204 1.0250 16,085,077 9 33 .002870124
D3 12,504,106 1.0856 11,518,152 15 600 .013021078
G1 6,183,570 0.9687 6,383,369 6 13 .002320308
Random Totals: 76,851,367   76,843,126 62 869  
Catg J Exception Values: 2,201,645   2,508,078      
Catg D1 Exception Values: 3,541,942   3,263,319      
Catg G1 Exception Values: 26,820,850   26,632,224      
Total Test Values (4): 109,415,804   109,246,747      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 5,462,337

Confidence Interval Values (5)

State Lower Limit: 103,784,410 (State Test Value minus Margin of Error Percent)
Local Test Value: 109,415,804 (Within Confidence Interval)
State Upper Limit: 114,709,084 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 112,477,840 (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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