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2007 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 15,807,726 1.0021 15,774,599 9 256 .002242152
A 15,696,440 0.9320 16,841,674 8 149 .056501909
A 15,678,139 0.9884 15,862,140 11 99 .023183573
A 15,591,984 0.9264 16,830,725 7 53 .003461225
D3 34,701,943 0.9803 35,399,309 17 1,137 .013162651
G1 30,134,172 1.0258 29,376,264 6 75 .025291862
G1 29,861,468 1.1102 26,897,377 6 27 .023951520
G1 32,341,217 1.0150 31,863,268 4 8 .000231862
G1 26,146,824 1.0119 25,839,336 2 3 .000179950
Random Totals: 215,959,913   214,684,692 70 1,807  
Catg D1 Exception Values: 870,647   778,441      
Total Test Values (4): 216,830,560   215,463,133      

Margin of Error

Margin of Error Percent: 5.0000002
Margin of Error Value: 10,773,157

Confidence Interval Values (5)

State Lower Limit: 204,689,976 (State Test Value minus Margin of Error Percent)
Local Test Value: 216,830,560 (Within Confidence Interval)
State Upper Limit: 226,236,290 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 207,190,956 (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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