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2011 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 218,684,658 1.0232 213,726,210 25 2,722 .113042425
A 223,201,160 0.9309 239,769,213 26 1,789 .030092548
A 222,127,430 1.0534 210,867,125 15 1,362 .048979444
A 226,829,045 0.9373 242,002,609 12 907 .019619800
D3 75,490,936 0.8758 86,196,547 15 2,184 .061901633
Random Totals: 966,333,229   992,561,704 93 8,964  
Catg D1 Exception Values: 2,232,728   3,151,149      
Total Test Values (4): 968,565,957   995,712,853      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 49,785,643

Confidence Interval Values (5)

State Lower Limit: 945,927,210 (State Test Value minus Margin of Error Percent)
Local Test Value: 968,565,957 (Within Confidence Interval)
State Upper Limit: 1,045,498,496 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 1,008,540,829 (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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