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2006 Confidence Interval Detail
213/Somervell
213-901/Glen Rose ISD

Category Summary

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

Stratum
Variance
A 40,536,501 0.9378 43,225,102 12 613 .067203572
A 40,592,443 0.9325 43,530,770 18 327 .013585611
A 40,376,455 0.9413 42,894,354 13 215 .015158079
A 40,475,102 0.9640 41,986,620 6 137 .015520752
D3 133,538,315 0.9842 135,682,092 15 2,769 .057674792
F1 11,194,967 0.9831 11,387,414 9 117 .001032182
F1 11,193,884 0.9892 11,316,098 7 41 .003074442
F1 11,430,877 0.9717 11,763,792 6 18 .001127384
Random Totals: 329,338,544   341,786,242 86 4,237  
Catg J Exception Values: 35,824,930   36,174,112      
Catg D1 Exception Values: 6,236,794   6,009,857      
Catg F1 Exception Values: 8,371,745   8,086,150      
Total Test Values (4): 379,772,013   392,056,361      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 19,602,818

Confidence Interval Values (5)

State Lower Limit: 372,453,543 (State Test Value minus Margin of Error Percent)
Local Test Value: 379,772,013 (Within Confidence Interval)
State Upper Limit: 411,659,179 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 1,966,156,543 (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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