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2009 Confidence Interval Detail
049/Cooke
049-905/Callisburg ISD

Category Summary

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

Stratum
Variance
A 101,412,323 1.0216 99,268,131 24 848 .022290206
A 95,999,632 0.9613 99,864,384 13 402 .003807451
A 98,148,480 0.9761 100,551,665 14 251 .004245387
A 103,610,727 0.9776 105,984,786 8 162 .002556141
D3 144,680,187 1.0525 137,463,361 26 3,928 .044634657
G1 6,410,750 0.9908 6,470,277 9 35 .006182264
G1 6,958,990 1.0345 6,726,912 7 15 .001805567
G1 6,662,660 1.0671 6,243,707 4 5 .013662243
Random Totals: 563,883,749   562,573,223 105 5,646  
Catg D1 Exception Values: 5,858,376   5,502,950      
Catg G1 Exception Values: 18,918,930   17,947,823      
Total Test Values (4): 588,661,055   586,023,996      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 29,301,200

Confidence Interval Values (5)

State Lower Limit: 556,722,796 (State Test Value minus Margin of Error Percent)
Local Test Value: 588,661,055 (Within Confidence Interval)
State Upper Limit: 615,325,196 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 539,795,313 (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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