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2008 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 9,374,930 0.8433 11,116,957 13 381 .037942240
A 11,263,420 0.9268 12,153,021 12 258 .034424496
A 16,663,724 1.0186 16,359,438 11 266 .002997511
A 24,957,290 1.0206 24,453,547 11 225 .004248944
D3 73,638,840 0.9991 73,705,175 21 4,093 .062742323
Random Totals: 135,898,204   137,788,138 68 5,223  
Catg J Exception Values: 12,204,268   13,717,298      
Catg D1 Exception Values: 12,945,635   11,606,454      
Total Test Values (4): 161,048,107   163,111,890      

Margin of Error

Margin of Error Percent: 5.0709583
Margin of Error Value: 8,271,336

Confidence Interval Values (5)

State Lower Limit: 154,840,554 (State Test Value minus Margin of Error Percent)
Local Test Value: 161,048,107 (Within Confidence Interval)
State Upper Limit: 171,383,226 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 129,214,877 (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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