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2008 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 16,249,640 1.0808 15,034,826 7 268 .019517486
A 16,472,380 1.0796 15,257,855 7 157 .044318156
A 14,955,860 0.9419 15,878,395 7 102 .036100085
A 20,204,880 0.9895 20,419,282 6 77 .009060362
D3 38,588,466 0.9789 39,420,233 11 1,140 .090314887
G1 30,778,182 0.9407 32,718,382 8 72 .010470143
G1 32,803,334 1.0086 32,523,631 6 30 .000525976
G1 31,976,260 1.0696 29,895,531 4 7 .003881442
G1 26,288,681 1.0357 25,382,525 2 3 .001065172
Random Totals: 228,317,683   226,530,660 58 1,856  
Catg D1 Exception Values: 796,656   785,443      
Total Test Values (4): 229,114,339   227,316,103      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 11,365,805

Confidence Interval Values (5)

State Lower Limit: 215,950,298 (State Test Value minus Margin of Error Percent)
Local Test Value: 229,114,339 (Within Confidence Interval)
State Upper Limit: 238,681,908 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 222,967,460 (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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