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2009 Confidence Interval Detail
018/Bosque
018-901/Clifton ISD

Category Summary

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

Stratum
Variance
A 44,679,400 0.9494 47,060,670 15 892 .048851468
A 44,485,690 0.9502 46,817,186 11 510 .043964525
A 46,938,770 0.9769 48,048,695 18 354 .007370077
A 45,679,790 1.0129 45,098,025 11 196 .011107035
D3 73,816,670 0.9677 76,280,531 14 2,266 .036962581
F1 7,352,260 1.0146 7,246,462 7 127 .004586362
F1 7,607,010 0.9673 7,864,168 8 53 .023841361
F1 7,801,600 1.0096 7,727,417 6 23 .005819397
F1 7,203,980 0.9610 7,496,337 4 6 .000370921
Random Totals: 285,565,170   293,639,491 94 4,427  
Catg J Exception Values: 27,024,989   26,915,118      
Catg D1 Exception Values: 9,692,900   9,141,060      
Total Test Values (4): 322,283,059   329,695,669      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 16,484,783

Confidence Interval Values (5)

State Lower Limit: 313,210,886 (State Test Value minus Margin of Error Percent)
Local Test Value: 322,283,059 (Within Confidence Interval)
State Upper Limit: 346,180,452 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 448,132,791 (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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