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2009 Confidence Interval Detail
205/San Patricio
205-904/Mathis ISD

Category Summary

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

Stratum
Variance
A 35,361,660 1.0121 34,938,899 8 1,172 .092904118
A 36,039,622 0.9950 36,220,726 8 679 .019433169
A 35,644,602 1.0742 33,182,463 9 438 .015775361
A 35,777,069 1.0176 35,158,283 7 227 .005304713
D3 17,654,269 0.9888 17,854,236 11 1,086 .008109771
F1 5,596,403 0.9500 5,890,951 6 88 .011070970
F1 5,792,620 0.9952 5,820,559 6 33 .006588983
F1 5,932,603 0.9747 6,086,594 5 18 .001583174
F1 7,489,161 1.0035 7,463,040 3 7 .009666265
Random Totals: 185,288,009   182,615,751 63 3,748  
Catg J Exception Values: 11,592,857   12,042,901      
Catg D1 Exception Values: 15,656,928   19,023,702      
Total Test Values (4): 212,537,794   213,682,354      

Margin of Error

Margin of Error Percent: 5.0000001
Margin of Error Value: 10,684,118

Confidence Interval Values (5)

State Lower Limit: 202,998,236 (State Test Value minus Margin of Error Percent)
Local Test Value: 212,537,794 (Within Confidence Interval)
State Upper Limit: 224,366,472 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 203,214,197 (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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