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2006 Confidence Interval Detail
184/Parker
184-902/Springtown ISD

Category Summary

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

Stratum
Variance
A 91,742,546 1.0206 89,890,796 12 2,500 .041844499
A 91,742,546 0.9381 97,796,126 23 1,500 .049562475
A 91,742,546 0.9625 95,316,931 41 1,000 .017879888
A 91,742,546 0.9924 92,445,129 50 500 .002110284
D3 158,721,970 1.0019 158,420,970 25 3,780 .051450521
Random Totals: 525,692,154   533,869,952 151 9,280  
Catg D1 Exception Values: 4,295,680   3,498,594      
Total Test Values (4): 529,987,834   537,368,546      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 26,868,427

Confidence Interval Values (5)

State Lower Limit: 510,500,119 (State Test Value minus Margin of Error Percent)
Local Test Value: 529,987,834 (Within Confidence Interval)
State Upper Limit: 564,236,973 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 612,920,324 (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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