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2007 Confidence Interval Detail
040/Cochran
040-902/Whiteface-Bledsoe CISD

Category Summary

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

Stratum
Variance
D3 5,579,650 0.9921 5,624,080 20 2,165 .354136106
G1 143,520,325 1.0745 133,569,404 9 59 .077717437
G1 155,565,982 1.0036 155,007,953 6 13 .006824330
G1 175,883,690 0.8153 215,728,799 3 5 .021047448
Random Totals: 480,549,647   509,930,236 38 2,242  
Catg D1 Exception Values: 35,666,800   51,373,555      
Catg G1 Exception Values: 90,457,234   90,589,286      
Total Test Values (4): 606,673,681   651,893,077      

Margin of Error

Margin of Error Percent: 5.1776298
Margin of Error Value: 33,752,610

Confidence Interval Values (5)

Local Test Value: 606,673,681 (Outside Confidence Interval)
State Lower Limit: 618,140,467 (State Test Value minus Margin of Error Percent)
State Upper Limit: 685,645,687 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 664,796,300 (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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