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2009 Confidence Interval Detail
057/Dallas
057-904/Cedar Hill ISD

Category Summary

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

Stratum
Variance
A 527,360,960 1.0373 508,397,725 25 5,287 .016878547
A 369,564,860 1.0594 348,843,553 24 2,797 .009591638
A 448,111,310 1.0344 433,208,923 25 2,334 .011383176
A 373,742,470 1.0318 362,223,755 25 920 .007982753
F1 122,160,970 0.9038 135,163,720 8 169 .012258261
F1 125,948,840 0.9699 129,857,552 7 38 .006899989
F1 108,843,970 1.0345 105,214,084 4 11 .018994647
F1 110,045,880 0.8219 133,892,055 3 4 .030541244
L1 49,327,410 1.1023 44,749,533 7 274 .046417992
L1 49,210,990 1.1315 43,491,816 7 39 .023105550
L1 35,542,460 0.9480 37,492,046 4 9 .021539912
L1 53,664,760 1.0886 49,297,042 2 5 .000959807
Random Totals: 2,373,524,880   2,331,831,804 141 11,887  
Catg D1 Exception Values: 379,503   329,045      
Total Test Values (4): 2,373,904,383   2,332,160,849      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 116,608,042

Confidence Interval Values (5)

State Lower Limit: 2,215,552,807 (State Test Value minus Margin of Error Percent)
Local Test Value: 2,373,904,383 (Within Confidence Interval)
State Upper Limit: 2,448,768,891 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 2,732,582,088 (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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