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2008 Confidence Interval Detail
230/Upshur
230-906/New Diana ISD

Category Summary

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

Stratum
Variance
A 16,322,500 1.0793 15,123,228 9 280 .018942475
A 17,159,450 1.0694 16,045,867 9 175 .002189041
A 19,544,960 0.9083 21,518,177 8 153 .025224014
A 26,097,400 1.0291 25,359,440 10 126 .006616236
D3 64,538,008 0.9825 65,687,540 21 1,947 .028881739
G1 3,407,369 1.0273 3,316,820 10 15 .018978629
Random Totals: 147,069,687   147,051,072 67 2,696  
Catg D1 Exception Values: 2,448,434   2,303,567      
Catg G1 Exception Values: 4,994,183   5,081,144      
Total Test Values (4): 154,512,304   154,435,783      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 7,721,789

Confidence Interval Values (5)

State Lower Limit: 146,713,994 (State Test Value minus Margin of Error Percent)
Local Test Value: 154,512,304 (Within Confidence Interval)
State Upper Limit: 162,157,572 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 139,443,613 (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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