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2006 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 10,877,565 1.0948 9,935,664 11 111 .056808613
A 11,096,950 0.9531 11,643,007 13 62 .031921090
A 10,464,385 0.9004 11,621,929 9 44 .005240834
A 10,812,017 0.9762 11,075,617 11 33 .004352256
D3 8,162,624 1.1266 7,245,361 11 569 .013057266
G1 3,180,600 0.9933 3,202,054 6 12 .019792587
Random Totals: 54,594,141   54,723,632 61 831  
Catg D1 Exception Values: 3,410,620   3,301,174      
Catg G1 Exception Values: 31,771,580   30,105,146      
Total Test Values (4): 89,776,341   88,129,952      

Margin of Error

Margin of Error Percent: 5.0000005
Margin of Error Value: 4,406,498

Confidence Interval Values (5)

State Lower Limit: 83,723,454 (State Test Value minus Margin of Error Percent)
Local Test Value: 89,776,341 (Within Confidence Interval)
State Upper Limit: 92,536,450 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 92,275,000 (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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