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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 0.8979 203,736,973 17 2,584 .032345959
A 179,940,210 0.9206 195,459,711 15 1,621 .007609510
A 197,332,965 0.9500 207,718,911 16 1,348 .004515458
A 210,285,775 0.9115 230,702,990 14 934 .012886488
D3 64,672,472 0.9877 65,477,850 10 2,200 .012439842
Random Totals: 835,166,850   903,096,435 72 8,687  
Catg D1 Exception Values: 2,177,088   2,623,745      
Total Test Values (4): 837,343,938   905,720,180      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 45,286,009

Confidence Interval Values (5)

Local Test Value: 837,343,938 (Outside Confidence Interval)
State Lower Limit: 860,434,171 (State Test Value minus Margin of Error Percent)
State Upper Limit: 951,006,189 (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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