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2009 Confidence Interval Detail
072/Erath
111-902/Lipan ISD

Category Summary

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

Stratum
Variance
D3 7,787,520 1.0215 7,623,612 18 247 .266177021
G1 11,154,260 1.0471 10,652,526 18 35 .009345897
Random Totals: 18,941,780   18,276,138 36 282  
Catg J Exception Values: 1,720   1,694      
Catg D1 Exception Values: 1,611,150   1,496,614      
Total Test Values (4): 20,554,650   19,774,446      

Margin of Error

Margin of Error Percent: 9.3268352
Margin of Error Value: 1,844,330

Confidence Interval Values (5)

State Lower Limit: 17,930,116 (State Test Value minus Margin of Error Percent)
Local Test Value: 20,554,650 (Within Confidence Interval)
State Upper Limit: 21,618,776 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 34,036,897 (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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