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2006 Confidence Interval Detail
050/Coryell
050-910/Copperas Cove ISD

Category Summary

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

Stratum
Variance
A 189,371,291 0.9548 198,336,082 42 3,216 .016332553
A 189,322,733 0.9415 201,086,280 37 2,366 .006647500
A 189,347,057 0.9382 201,819,502 80 1,801 .005440622
A 189,265,856 0.9485 199,542,284 46 1,262 .007298081
B 21,781,369 0.9254 23,537,248 15 302 .030164705
B 21,736,743 0.9969 21,804,336 23 184 .021537551
B 21,633,455 1.0484 20,634,734 10 113 .019515057
B 21,681,759 0.9789 22,149,105 5 23 .000960311
F1 27,609,498 0.9532 28,965,063 7 160 .008124161
F1 27,932,305 1.0008 27,909,977 6 65 .005922297
F1 28,050,612 0.9771 28,708,026 5 22 .002712484
F1 26,150,599 0.9993 26,168,917 3 6 .000370294
Random Totals: 953,883,277   1,000,661,554 279 9,520  
Catg D1 Exception Values: 1,810,323   1,424,904      
Total Test Values (4): 955,693,600   1,002,086,458      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 50,104,323

Confidence Interval Values (5)

State Lower Limit: 951,982,135 (State Test Value minus Margin of Error Percent)
Local Test Value: 955,693,600 (Within Confidence Interval)
State Upper Limit: 1,052,190,781 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 945,606,915 (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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