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2007 Confidence Interval Detail
230/Upshur
230-901/Big Sandy ISD

Category Summary

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

Stratum
Variance
A 15,137,875 1.0285 14,718,401 16 297 .090623872
A 15,071,089 1.0645 14,157,904 17 174 .023812047
A 15,065,661 1.1876 12,685,804 17 120 .021440812
A 15,038,859 1.0420 14,432,686 16 77 .014168984
D3 61,512,480 1.0729 57,332,911 21 2,467 .051572974
F1 2,437,628 0.7006 3,479,343 6 37 .050879319
F1 2,509,053 0.8559 2,931,479 5 18 .073165141
F1 2,584,404 0.8234 3,138,698 4 8 .023019945
G1 5,545,928 0.9260 5,989,123 8 19 .006841145
L1 1,709,932 0.8759 1,952,200 6 54 .059767702
L1 1,767,779 0.7354 2,403,833 4 12 .191532231
L1 1,860,129 1.1613 1,601,764 2 4 .062273537
Random Totals: 140,240,817   134,824,146 122 3,287  
Catg J Exception Values: 10,350,298   9,948,765      
Catg D1 Exception Values: 4,664,716   4,056,030      
Catg F1 Exception Values: 4,147,290   6,589,140      
Catg G1 Exception Values: 13,378,215   13,445,044      
Catg L1 Exception Values: 4,117,070   4,102,640      
Total Test Values (4): 176,898,406   172,965,765      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 8,648,288

Confidence Interval Values (5)

State Lower Limit: 164,317,477 (State Test Value minus Margin of Error Percent)
Local Test Value: 176,898,406 (Within Confidence Interval)
State Upper Limit: 181,614,053 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 157,304,509 (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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