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2008 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 486,521,200 1.0403 467,673,940 20 4,627 .007591696
A 456,574,790 1.0327 442,117,546 24 3,469 .004034444
A 494,006,240 0.9985 494,748,363 26 2,699 .004360765
A 521,439,870 0.9999 521,492,019 24 1,216 .007313736
C 38,456,570 1.0170 37,813,736 10 925 .035304571
C 33,574,960 1.0092 33,268,886 10 449 .002408280
C 39,927,050 1.0657 37,465,563 12 261 .014257349
C 29,406,090 1.0051 29,256,880 6 40 .021715120
F1 114,214,700 0.8854 128,997,854 7 173 .013372416
F1 123,276,950 0.9325 132,200,483 6 42 .010699188
F1 88,391,180 0.8408 105,127,474 4 10 .019642950
F1 148,340,270 0.9524 155,754,168 3 7 .001110824
L1 40,801,870 1.0370 39,346,066 7 243 .013805774
L1 45,256,760 1.1056 40,934,117 6 38 .002188758
L1 40,488,970 1.1470 35,299,887 4 11 .019892275
L1 50,632,020 1.0803 46,868,481 2 4 .000076585
Random Totals: 2,751,309,490   2,748,365,463 171 14,214  
Catg D1 Exception Values: 374,189   340,794      
Total Test Values (4): 2,751,683,679   2,748,706,257      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 137,435,313

Confidence Interval Values (5)

State Lower Limit: 2,611,270,944 (State Test Value minus Margin of Error Percent)
Local Test Value: 2,751,683,679 (Within Confidence Interval)
State Upper Limit: 2,886,141,570 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 2,898,193,123 (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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