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2007 Confidence Interval Detail
004/Aransas
004-901/Aransas County ISD

Category Summary

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

Stratum
Variance
A 455,527,315 0.8948 509,082,829 46 4,325 .027731243
A 450,513,704 0.9750 462,065,337 47 2,077 .018305147
A 452,903,108 0.9595 472,019,915 52 1,192 .012574514
A 452,770,807 0.9545 474,353,910 39 572 .017624140
C 60,637,429 0.9017 67,247,897 42 3,152 .111840514
C 60,670,924 1.0561 57,448,086 13 960 .035167068
C 60,942,340 1.0128 60,172,137 9 346 .007922994
C 60,180,776 0.9876 60,936,387 8 117 .002110157
F1 56,175,554 0.9173 61,240,111 10 356 .039418331
F1 56,665,642 0.9652 58,708,705 8 130 .071083138
F1 56,002,939 0.9959 56,233,496 6 57 .013870138
F1 55,561,403 1.0642 52,209,550 5 19 .012300713
Random Totals: 2,278,551,941   2,391,718,360 285 13,303  
Catg D1 Exception Values: 5,602,120   6,140,862      
Total Test Values (4): 2,284,154,061   2,397,859,222      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 119,892,961

Confidence Interval Values (5)

State Lower Limit: 2,277,966,261 (State Test Value minus Margin of Error Percent)
Local Test Value: 2,284,154,061 (Within Confidence Interval)
State Upper Limit: 2,517,752,183 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 2,266,738,831 (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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