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2007 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 12,120,774 0.9806 12,360,569 9 117 .034834674
A 12,360,657 0.8815 14,022,299 8 63 .014791542
A 11,566,204 0.8458 13,674,869 9 44 .003988574
A 12,002,845 1.0101 11,882,828 7 33 .027534517
D3 9,077,338 1.0692 8,489,841 12 580 .032745296
G1 3,941,310 0.9971 3,952,773 9 12 .126797366
Random Totals: 61,069,128   64,383,179 54 849  
Catg D1 Exception Values: 3,429,365   3,394,167      
Catg G1 Exception Values: 26,752,574   26,723,567      
Total Test Values (4): 91,251,067   94,500,913      

Margin of Error

Margin of Error Percent: 5.0000004
Margin of Error Value: 4,725,046

Confidence Interval Values (5)

State Lower Limit: 89,775,867 (State Test Value minus Margin of Error Percent)
Local Test Value: 91,251,067 (Within Confidence Interval)
State Upper Limit: 99,225,959 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 93,764,539 (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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