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2006 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 456,651,716 0.9934 459,685,641 42 4,191 .003658319
A 456,455,155 0.9855 463,171,136 45 3,408 .009215265
A 456,582,046 1.0032 455,125,644 41 2,639 .004282459
A 456,351,876 0.9949 458,691,201 46 1,253 .001634357
C 37,757,578 0.9744 38,749,567 7 950 .013569578
C 37,777,946 1.0917 34,604,695 10 519 .042619721
C 37,743,339 0.9114 41,412,485 9 270 .103436283
C 37,694,204 1.0124 37,232,521 7 65 .015432434
F1 85,462,437 0.9784 87,349,179 7 155 .007087368
F1 84,313,835 0.8914 94,585,859 6 34 .024503482
F1 88,460,428 0.8769 100,878,581 4 11 .022741441
F1 80,352,833 0.9712 82,735,619 2 3 .000052337
L1 38,472,749 1.1550 33,309,739 7 238 .032507556
L1 39,422,003 1.0358 38,059,474 7 35 .000367178
L1 39,396,037 1.1053 35,642,845 6 10 .005679098
Random Totals: 2,432,894,182   2,461,234,186 246 13,781  
Catg D1 Exception Values: 340,754   329,152      
Catg L1 Exception Values: 30,177,070   29,532,068      
Total Test Values (4): 2,463,412,006   2,491,095,406      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 124,554,770

Confidence Interval Values (5)

State Lower Limit: 2,366,540,636 (State Test Value minus Margin of Error Percent)
Local Test Value: 2,463,412,006 (Within Confidence Interval)
State Upper Limit: 2,615,650,176 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 2,582,982,438 (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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