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2006 Confidence Interval Detail
020/Brazoria
020-902/Angleton ISD

Category Summary

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

Stratum
Variance
A 176,610,070 0.9813 179,975,614 49 2,876 .022659613
A 176,371,837 0.9909 177,991,560 54 1,879 .008768504
A 176,558,632 0.9821 179,776,634 47 1,415 .005740376
A 176,315,869 0.9674 182,257,462 57 839 .001803898
D3 74,489,060 0.9090 81,946,161 12 4,002 .028133695
F1 30,204,273 0.8919 33,865,089 8 271 .113151532
F1 29,936,785 0.9002 33,255,704 11 99 .025587062
F1 31,198,389 0.9970 31,292,266 11 39 .012338291
F1 28,935,188 0.9962 29,045,561 8 11 .010619950
G1 14,522,330 0.8241 17,622,048 5 19 .107153747
G1 13,016,570 0.9842 13,225,533 3 6 .001375992
G1 12,887,160 0.9656 13,346,272 2 3 .003248309
L1 20,443,917 1.0185 20,072,574 10 328 .009496471
L1 20,617,011 0.9611 21,451,473 7 68 .005403972
L1 20,296,071 0.9812 20,684,948 6 18 .000784870
Random Totals: 1,002,403,162   1,035,808,899 290 11,873  
Catg J Exception Values: 53,413,488   53,644,379      
Catg D1 Exception Values: 15,896,180   17,343,301      
Catg G1 Exception Values: 13,406,920   20,729,488      
Catg L1 Exception Values: 10,291,090   10,796,698      
Total Test Values (4): 1,095,410,840   1,138,322,765      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 56,916,138

Confidence Interval Values (5)

State Lower Limit: 1,081,406,627 (State Test Value minus Margin of Error Percent)
Local Test Value: 1,095,410,840 (Within Confidence Interval)
State Upper Limit: 1,195,238,903 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 2,401,100,365 (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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