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2006 Confidence Interval Detail
025/Brown
025-902/Brownwood ISD

Category Summary

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

Stratum
Variance
A 92,168,892 0.8751 105,323,840 18 2,870 .079026703
A 92,178,709 0.9297 99,148,875 33 1,320 .022589961
A 92,172,745 0.9268 99,452,681 21 833 .016841494
A 92,149,062 0.8912 103,398,858 24 423 .030979744
D3 36,919,927 1.0432 35,391,034 21 1,394 .022455121
F1 33,502,077 0.9251 36,214,547 9 354 .017048759
F1 33,326,980 0.9372 35,560,158 7 90 .005813877
F1 34,469,319 1.0312 33,426,415 6 25 .020576526
F1 31,967,757 0.9552 33,467,082 3 4 .000028844
L1 24,042,108 0.9887 24,316,889 10 353 .000964380
L1 24,430,947 0.9830 24,853,456 7 86 .000264721
L1 24,658,060 0.9815 25,122,832 7 28 .000321462
Random Totals: 611,986,583   655,676,667 166 7,780  
Catg J Exception Values: 37,158,030   37,259,149      
Catg D1 Exception Values: 4,881,776   4,434,135      
Catg L1 Exception Values: 22,938,620   23,139,813      
Total Test Values (4): 676,965,009   720,509,764      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 36,025,488

Confidence Interval Values (5)

Local Test Value: 676,965,009 (Outside Confidence Interval)
State Lower Limit: 684,484,276 (State Test Value minus Margin of Error Percent)
State Upper Limit: 756,535,252 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 935,086,179 (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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