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2006 Confidence Interval Detail
139/Lamar
139-912/Prairiland ISD

Category Summary

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

Stratum
Variance
A 11,785,867 0.9427 12,502,246 8 494 .001650630
A 11,772,211 0.8774 13,417,154 7 285 .055322885
A 11,758,738 0.8454 13,909,082 7 198 .041993635
A 11,751,758 0.8958 13,118,730 7 124 .020752230
D3 54,640,530 0.9600 56,917,219 31 3,623 .097084308
Random Totals: 101,709,104   109,864,431 60 4,724  
Catg J Exception Values: 11,870,367   13,666,603      
Catg D1 Exception Values: 14,705,175   14,641,010      
Total Test Values (4): 128,284,646   138,172,044      

Margin of Error

Margin of Error Percent: 5.2348469
Margin of Error Value: 7,233,095

Confidence Interval Values (5)

Local Test Value: 128,284,646 (Outside Confidence Interval)
State Lower Limit: 130,938,949 (State Test Value minus Margin of Error Percent)
State Upper Limit: 145,405,139 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 112,514,853 (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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