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2012 Confidence Interval Detail
109/Hill
109-914/Penelope ISD

Category Summary

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

Stratum
Variance
A 1,491,390 0.9613 1,551,430 9 54 .008904283
A 1,515,730 0.9847 1,539,281 7 28 .004175443
A 1,318,840 0.9865 1,336,888 7 16 .003249747
A 1,585,920 0.9764 1,624,252 5 11 .000393868
D3 11,322,112 0.9778 11,579,170 15 792 .005014346
Random Totals: 17,233,992   17,631,021 43 901  
Catg D1 Exception Values: 3,751,524   4,035,807      
Total Test Values (4): 20,985,516   21,666,828      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 1,083,341

Confidence Interval Values (5)

State Lower Limit: 20,583,487 (State Test Value minus Margin of Error Percent)
Local Test Value: 20,985,516 (Within Confidence Interval)
State Upper Limit: 22,750,169 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 20,943,443 (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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