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2007 Confidence Interval Detail
018/Bosque
018-907/Kopperl ISD

Category Summary

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

Stratum
Variance
A 10,312,845 0.9363 11,014,467 7 300 .031074607
A 10,263,272 0.9964 10,300,353 7 163 .004711489
A 10,290,213 0.9793 10,507,723 8 109 .004329871
A 10,242,588 1.0171 10,070,384 6 69 .003215691
D3 36,784,400 0.9753 37,715,985 20 1,013 .006990994
Random Totals: 77,893,318   79,608,912 48 1,654  
Catg J Exception Values: 4,351,140   4,598,718      
Catg D1 Exception Values: 4,175,330   3,782,999      
Total Test Values (4): 86,419,788   87,990,629      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 4,399,531

Confidence Interval Values (5)

State Lower Limit: 83,591,098 (State Test Value minus Margin of Error Percent)
Local Test Value: 86,419,788 (Within Confidence Interval)
State Upper Limit: 92,390,160 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 95,289,484 (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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