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2007 Confidence Interval Detail
231/Upton
231-901/McCamey ISD

Category Summary

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

Stratum
Variance
A 5,284,042 0.8905 5,933,792 8 349 .029386073
A 5,281,914 0.8703 6,069,073 7 197 .035947606
A 5,226,529 0.8571 6,097,922 9 121 .049867253
A 5,258,446 0.9426 5,578,661 8 65 .004611151
G1 304,217,622 1.0062 302,343,095 15 176 .019951819
G1 307,701,550 1.0056 305,988,017 15 58 .000730129
Random Totals: 632,970,103   632,010,560 62 966  
Catg D1 Exception Values: 867,620   1,357,734      
Catg G1 Exception Values: 486,126,192   502,608,023      
Total Test Values (4): 1,119,963,915   1,135,976,317      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 56,798,816

Confidence Interval Values (5)

State Lower Limit: 1,079,177,501 (State Test Value minus Margin of Error Percent)
Local Test Value: 1,119,963,915 (Within Confidence Interval)
State Upper Limit: 1,192,775,133 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 1,417,443,745 (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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