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2012 Confidence Interval Detail
109/Hill
109-901/Abbott ISD

Category Summary

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

Stratum
Variance
A 4,645,050 1.0011 4,639,946 9 87 .000973871
A 4,661,560 0.9845 4,734,952 10 53 .001225934
A 4,354,110 1.0048 4,333,310 8 38 .002661702
A 4,860,730 1.0094 4,815,465 9 27 .000517408
D3 21,376,020 0.9788 21,839,007 15 1,175 .026834091
Random Totals: 39,897,470   40,362,680 51 1,380  
Catg J Exception Values: 1,631,311   1,644,596      
Catg D1 Exception Values: 6,259,020   7,062,934      
Total Test Values (4): 47,787,801   49,070,210      

Margin of Error

Margin of Error Percent: 5.0000010
Margin of Error Value: 2,453,511

Confidence Interval Values (5)

State Lower Limit: 46,616,699 (State Test Value minus Margin of Error Percent)
Local Test Value: 47,787,801 (Within Confidence Interval)
State Upper Limit: 51,523,721 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 77,189,845 (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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