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2007 Confidence Interval Detail
084/Galveston
084-909/Santa Fe ISD

Category Summary

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

Stratum
Variance
A 184,362,103 0.9893 186,356,113 20 2,554 .006582372
A 184,145,305 1.0117 182,015,721 10 1,621 .011503595
A 184,135,039 0.9501 193,805,956 12 1,228 .012102989
A 184,135,583 0.9915 185,714,153 11 815 .004142578
D3 66,263,704 0.9264 71,528,178 14 2,148 .036149388
Random Totals: 803,041,734   819,420,121 67 8,366  
Catg D1 Exception Values: 2,143,761   2,517,569      
Total Test Values (4): 805,185,495   821,937,690      

Margin of Error

Margin of Error Percent: 5.0000001
Margin of Error Value: 41,096,885

Confidence Interval Values (5)

State Lower Limit: 780,840,805 (State Test Value minus Margin of Error Percent)
Local Test Value: 805,185,495 (Within Confidence Interval)
State Upper Limit: 863,034,575 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 892,691,152 (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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