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2010 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 456,455,850 1.0020 455,544,760 24 5,007 .006475726
A 441,731,660 1.0087 437,921,741 25 3,605 .007833816
A 419,517,030 1.0363 404,821,992 25 2,393 .009307211
A 404,234,650 1.0368 389,886,815 25 1,141 .015277033
C 42,098,510 1.0504 40,078,551 17 989 .029068599
C 25,816,560 0.9893 26,095,785 13 330 .009310526
C 27,749,650 1.0754 25,804,026 11 190 .026821348
C 36,741,380 0.9866 37,240,401 10 58 .003282773
F1 123,502,910 0.9694 127,401,393 9 173 .031058591
F1 116,060,490 0.9967 116,444,758 8 36 .036959035
F1 108,731,130 0.9513 114,297,414 6 12 .015476263
F1 81,113,800 0.8154 99,477,312 3 3 .024801363
L1 48,791,870 1.0402 46,906,239 10 266 .004206700
L1 41,038,330 1.0566 38,839,987 8 36 .005836779
L1 45,570,570 1.1551 39,451,623 5 11 .005178989
L1 37,029,300 1.0736 34,490,779 3 3 .003414360
Random Totals: 2,456,183,690   2,434,703,576 202 14,253  
Catg J Exception Values: 39,921,221   45,048,052      
Catg D1 Exception Values: 373,285   292,451      
Total Test Values (4): 2,496,478,196   2,480,044,079      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 124,002,204

Confidence Interval Values (5)

State Lower Limit: 2,356,041,875 (State Test Value minus Margin of Error Percent)
Local Test Value: 2,496,478,196 (Within Confidence Interval)
State Upper Limit: 2,604,046,283 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 2,582,824,848 (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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