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2009 Confidence Interval Detail
146/Liberty
146-907/Tarkington ISD

Category Summary

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

Stratum
Variance
A 51,378,824 0.9218 55,737,496 15 1,071 .014099935
A 52,448,000 0.9162 57,245,143 15 582 .019232795
A 51,418,690 0.8668 59,320,132 17 405 .026012570
A 45,593,550 0.9455 48,221,629 16 237 .025904166
D3 72,005,804 0.8414 85,578,564 32 3,579 .183130698
Random Totals: 272,844,868   306,102,964 95 5,874  
Catg J Exception Values: 12,502,614   12,472,468      
Catg D1 Exception Values: 20,424,449   18,780,218      
Total Test Values (4): 305,771,931   337,355,650      

Margin of Error

Margin of Error Percent: 5.0000001
Margin of Error Value: 16,867,783

Confidence Interval Values (5)

Local Test Value: 305,771,931 (Outside Confidence Interval)
State Lower Limit: 320,487,867 (State Test Value minus Margin of Error Percent)
State Upper Limit: 354,223,433 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 364,553,894 (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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