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2006 Confidence Interval Detail
129/Kaufman
129-902/Forney ISD

Category Summary

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

Stratum
Variance
A 284,717,186 0.9350 304,510,359 56 1,998 .011963328
A 284,275,434 0.9708 292,825,952 60 1,561 .009493500
A 284,730,679 0.9619 296,008,607 56 1,263 .009710520
A 284,240,388 1.0073 282,180,471 54 933 .007783604
D3 93,129,110 0.6866 135,638,086 20 642,512 .571078638
F1 24,227,953 0.6042 40,099,227 12 164 .296247378
F1 25,060,932 0.8101 30,935,603 8 35 .058272443
F1 25,012,242 0.6687 37,404,280 5 14 .086599581
Random Totals: 1,305,393,924   1,419,602,585 271 648,480  
Catg D1 Exception Values: 4,507,060   3,142,100      
Catg F1 Exception Values: 27,812,620   31,305,477      
Total Test Values (4): 1,337,713,604   1,454,050,162      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 72,702,508

Confidence Interval Values (5)

Local Test Value: 1,337,713,604 (Outside Confidence Interval)
State Lower Limit: 1,381,347,654 (State Test Value minus Margin of Error Percent)
State Upper Limit: 1,526,752,670 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 1,855,919,553 (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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