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2006 Confidence Interval Detail
019/Bowie
019-908/Liberty-Eylau ISD

Category Summary

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

Stratum
Variance
A 49,362,532 0.9076 54,387,981 15 1,295 .068136319
A 49,337,661 0.9040 54,577,059 15 777 .040477511
A 49,285,193 0.9414 52,353,084 15 529 .011635013
A 49,265,389 0.9776 50,394,220 16 317 .005506929
D3 45,774,990 0.9242 49,529,312 26 1,500 .035607279
F1 16,582,853 0.9889 16,768,989 16 126 .012032807
F1 16,670,265 0.9546 17,463,089 16 40 .007651114
F1 17,185,759 0.9296 18,487,262 15 17 .010087161
F1 15,139,644 0.9713 15,586,991 5 6 .002554415
L1 11,457,484 1.1183 10,245,448 14 110 .034521803
L1 11,561,422 0.9903 11,674,666 11 30 .017960473
L1 12,656,490 1.0634 11,901,909 7 11 .018071447
L1 9,460,160 1.0514 8,997,679 3 4 .028660810
Random Totals: 353,739,842   372,367,689 174 4,762  
Catg D1 Exception Values: 2,320,040   2,192,953      
Total Test Values (4): 356,059,882   374,560,642      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 18,728,032

Confidence Interval Values (5)

State Lower Limit: 355,832,610 (State Test Value minus Margin of Error Percent)
Local Test Value: 356,059,882 (Within Confidence Interval)
State Upper Limit: 393,288,674 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 417,811,658 (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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