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2010 Confidence Interval Detail
230/Upshur
230-908/Union Grove ISD

Category Summary

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

Stratum
Variance
A 16,247,950 0.9626 16,879,233 10 271 .015342887
A 18,140,250 0.9300 19,505,645 9 172 .010775137
A 18,005,810 0.9520 18,913,666 9 114 .004372029
A 19,879,010 0.9554 20,807,002 9 69 .003668226
D3 39,513,904 0.8864 44,577,960 20 1,152 .154789304
G1 20,134,100 1.0014 20,105,952 13 65 .010296126
G1 20,520,880 1.0256 20,008,658 8 26 .002556555
G1 22,237,878 0.9952 22,345,135 6 8 .000511100
G1 16,305,505 0.9902 16,466,880 2 3 .000087365
Random Totals: 190,985,287   199,610,131 86 1,880  
Catg J Exception Values: 812,600   788,600      
Catg D1 Exception Values: 686,589   689,497      
Total Test Values (4): 192,484,476   201,088,228      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 10,054,411

Confidence Interval Values (5)

State Lower Limit: 191,033,817 (State Test Value minus Margin of Error Percent)
Local Test Value: 192,484,476 (Within Confidence Interval)
State Upper Limit: 211,142,639 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 187,645,770 (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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