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2007 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 2,572,471 0.8462 3,040,027 8 85 .005916547
A 2,571,303 0.9323 2,758,021 7 43 .021621055
A 2,658,464 0.9771 2,720,770 9 27 .005861920
A 2,474,358 0.9613 2,573,971 5 13 .001091084
D3 31,025,706 1.0664 29,093,873 30 1,272 .089695869
L1 3,451,430 0.6476 5,329,571 20 32 .278488364
Random Totals: 44,753,732   45,516,233 79 1,472  
Catg J Exception Values: 1,695,543   1,681,575      
Catg D1 Exception Values: 3,658,504   3,028,847      
Total Test Values (4): 50,107,779   50,226,655      

Margin of Error

Margin of Error Percent: 6.4490000
Margin of Error Value: 3,239,117

Confidence Interval Values (5)

State Lower Limit: 46,987,538 (State Test Value minus Margin of Error Percent)
Local Test Value: 50,107,779 (Within Confidence Interval)
State Upper Limit: 53,465,772 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 46,931,387 (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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