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2008 Confidence Interval Detail
024/Brooks
024-901/Brooks County ISD

Category Summary

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

Stratum
Variance
A 12,138,083 0.9306 13,043,287 7 816 .010772996
A 12,647,013 0.9663 13,088,081 7 435 .023597545
A 13,128,035 0.8220 15,970,845 8 257 .020206969
A 12,404,410 0.9058 13,694,425 7 136 .014599361
D3 25,844,253 0.3554 72,718,776 18 3,671 .129329117
G1 159,137,140 1.0141 156,924,504 16 132 .047337266
G1 156,966,412 0.9910 158,391,939 15 47 .010079497
G1 166,086,119 1.0322 160,904,979 15 23 .009095722
G1 149,398,696 0.9943 150,255,150 8 10 .001159093
Random Totals: 707,750,161   754,991,986 101 5,527  
Catg J Exception Values: 29,589,243   25,956,961      
Catg D1 Exception Values: 42,693,134   45,071,925      
Total Test Values (4): 780,032,538   826,020,872      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 41,301,044

Confidence Interval Values (5)

Local Test Value: 780,032,538 (Outside Confidence Interval)
State Lower Limit: 784,719,828 (State Test Value minus Margin of Error Percent)
State Upper Limit: 867,321,916 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 955,289,574 (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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