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2010 Confidence Interval Detail
128/Karnes
013-903/Pettus ISD

Category Summary

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

Stratum
Variance
D3 6,747,777 1.0347 6,521,482 19 433 .037293154
G1 3,047,730 1.0410 2,927,695 6 16 .007339465
G1 3,365,002 1.0149 3,315,600 3 5 .000037792
G1 3,941,290 0.8779 4,489,452 2 3 .167194486
Random Totals: 17,101,799   17,254,229 30 457  
Catg J Exception Values: 377,720   482,215      
Catg D1 Exception Values: 2,391,035   2,359,472      
Catg G1 Exception Values: 1,679,638   1,646,822      
Total Test Values (4): 21,550,192   21,742,738      

Margin of Error

Margin of Error Percent: 7.6088531
Margin of Error Value: 1,654,373

Confidence Interval Values (5)

State Lower Limit: 20,088,365 (State Test Value minus Margin of Error Percent)
Local Test Value: 21,550,192 (Within Confidence Interval)
State Upper Limit: 23,397,111 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 25,257,648 (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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