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2009 Confidence Interval Detail
196/Refugio
196-903/Refugio ISD

Category Summary

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

Stratum
Variance
A 14,218,710 0.9484 14,992,313 11 440 .016483853
A 15,692,640 1.0120 15,506,561 10 287 .036836706
A 18,786,630 0.9656 19,455,913 10 221 .054426422
A 23,497,170 1.0220 22,991,360 13 139 .029935961
D3 15,611,910 0.9644 16,188,210 13 2,162 .099418702
G1 50,756,840 1.0306 49,249,796 6 67 .008806159
G1 48,739,410 1.0454 46,622,738 5 24 .008303489
G1 54,768,060 1.0696 51,204,245 4 10 .003468036
G1 44,144,284 1.0534 41,906,478 2 3 .000638249
Random Totals: 286,215,654   278,117,614 74 3,353  
Catg J Exception Values: 27,529,395   28,101,198      
Catg D1 Exception Values: 15,474,560   15,729,177      
Catg G1 Exception Values: 106,921,148   105,354,705      
Total Test Values (4): 436,140,757   427,302,694      

Margin of Error

Margin of Error Percent: 5.0000001
Margin of Error Value: 21,365,135

Confidence Interval Values (5)

State Lower Limit: 405,937,559 (State Test Value minus Margin of Error Percent)
Local Test Value: 436,140,757 (Within Confidence Interval)
State Upper Limit: 448,667,829 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 508,987,268 (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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