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2012 Confidence Interval Detail
158/Matagorda
158-904/Matagorda ISD

Category Summary

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

Stratum
Variance
A 44,128,287 1.0071 43,817,185 11 427 .016327207
A 45,937,849 0.9643 47,638,545 11 252 .007561711
A 48,093,653 0.9558 50,317,695 10 188 .003841910
A 44,916,736 1.0615 42,314,400 9 114 .008127943
C 6,306,867 0.9488 6,647,204 12 293 .053555195
C 6,535,460 0.9347 6,992,040 9 95 .005099697
C 6,780,020 0.9714 6,979,638 9 60 .006934890
C 6,331,260 0.9705 6,523,709 8 33 .001209160
Random Totals: 209,030,132   211,230,416 79 1,462  
Catg D1 Exception Values: 2,464,230   3,088,131      
Total Test Values (4): 211,494,362   214,318,547      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 10,715,927

Confidence Interval Values (5)

State Lower Limit: 203,602,620 (State Test Value minus Margin of Error Percent)
Local Test Value: 211,494,362 (Within Confidence Interval)
State Upper Limit: 225,034,474 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 243,988,954 (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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