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2007 Confidence Interval Detail
025/Brown
025-908/Brookesmith ISD

Category Summary

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

Stratum
Variance
A 705,976 0.9928 711,096 7 27 .003808000
A 654,465 0.9622 680,176 6 13 .004668972
A 673,215 0.9879 681,461 4 9 .003884215
A 658,288 0.8645 761,467 4 6 .043872282
D3 28,624,760 1.0596 27,014,685 50 1,569 .091060836
Random Totals: 31,316,704   29,848,885 71 1,624  
Catg J Exception Values: 4,813,280   4,800,280      
Catg D1 Exception Values: 7,160,697   6,086,121      
Total Test Values (4): 43,290,681   40,735,286      

Margin of Error

Margin of Error Percent: 5.5618880
Margin of Error Value: 2,265,651

Confidence Interval Values (5)

State Lower Limit: 38,469,635 (State Test Value minus Margin of Error Percent)
State Upper Limit: 43,000,937 (State Test Value plus Margin of Error Percent)
Local Test Value: 43,290,681 (Outside Confidence Interval)
Value Assigned (6): 41,339,883 (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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