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2010 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 12,815,926 0.9488 13,507,511 10 766 .028391972
A 12,785,062 0.9957 12,840,275 10 393 .035522295
A 13,017,560 1.0236 12,717,429 10 233 .014721112
A 13,148,698 0.9957 13,205,482 9 133 .005779141
G1 128,866,969 1.0638 121,138,343 10 142 .017193018
G1 129,486,553 1.0428 124,171,992 8 47 .016149664
G1 127,874,621 0.9968 128,285,133 7 22 .011153525
G1 124,587,103 0.9738 127,939,108 5 11 .007549428
Random Totals: 562,582,492   553,805,273 69 1,747  
Catg J Exception Values: 27,171,470   24,369,925      
Catg D1 Exception Values: 46,482,181   49,144,874      
Total Test Values (4): 636,236,143   627,320,072      

Margin of Error

Margin of Error Percent: 5.0000001
Margin of Error Value: 31,366,004

Confidence Interval Values (5)

State Lower Limit: 595,954,068 (State Test Value minus Margin of Error Percent)
Local Test Value: 636,236,143 (Within Confidence Interval)
State Upper Limit: 658,686,076 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 798,949,705 (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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