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2008 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 182,935,428 0.9486 192,847,805 17 2,584 .033033880
A 179,940,210 0.9660 186,273,509 13 1,621 .004819887
A 197,332,965 0.9985 197,629,409 17 1,348 .003858396
A 210,285,775 0.9545 220,309,874 14 934 .013938143
D3 64,672,472 0.9993 64,717,774 10 2,200 .010144837
Random Totals: 835,166,850   861,778,371 71 8,687  
Catg D1 Exception Values: 2,177,088   2,623,745      
Total Test Values (4): 837,343,938   864,402,116      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 43,220,106

Confidence Interval Values (5)

State Lower Limit: 821,182,010 (State Test Value minus Margin of Error Percent)
Local Test Value: 837,343,938 (Within Confidence Interval)
State Upper Limit: 907,622,222 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 936,362,538 (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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