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2008 Confidence Interval Detail
109/Hill
109-912/Aquilla ISD

Category Summary

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

Stratum
Variance
A 2,610,450 0.9538 2,736,895 6 84 .016158317
A 2,417,500 0.9418 2,566,893 8 42 .015450733
A 3,261,860 1.0128 3,220,636 7 34 .010106549
A 2,789,430 0.9755 2,859,487 7 16 .019616805
D3 32,804,381 1.0555 31,079,470 41 1,268 .060515953
L1 3,103,190 0.7346 4,224,326 10 30 .122772320
Random Totals: 46,986,811   46,687,707 79 1,474  
Catg J Exception Values: 1,696,186   1,784,722      
Catg D1 Exception Values: 3,691,180   3,140,407      
Total Test Values (4): 52,374,177   51,612,836      

Margin of Error

Margin of Error Percent: 5.0000004
Margin of Error Value: 2,580,642

Confidence Interval Values (5)

State Lower Limit: 49,032,194 (State Test Value minus Margin of Error Percent)
Local Test Value: 52,374,177 (Within Confidence Interval)
State Upper Limit: 54,193,478 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 48,927,115 (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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