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2009 Confidence Interval Detail
247/Wilson
247-904/Poth ISD

Category Summary

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

Stratum
Variance
A 9,628,661 0.9575 10,056,043 15 223 .008698580
A 14,855,624 0.9887 15,025,411 15 189 .007650132
A 16,431,991 0.9884 16,624,839 15 149 .007344464
A 33,230,707 0.9904 33,552,814 15 189 .010514377
D3 71,161,223 0.9543 74,569,028 21 2,881 .035067275
G1 1,604,356 1.1401 1,407,206 12 33 .103772526
G1 2,282,515 1.2632 1,806,931 4 5 .312418300
Random Totals: 149,195,077   153,042,272 97 3,669  
Catg D1 Exception Values: 16,577,829   14,156,375      
Catg G1 Exception Values: 2,345,341   2,108,089      
Total Test Values (4): 168,118,247   169,306,736      

Margin of Error

Margin of Error Percent: 5.0000001
Margin of Error Value: 8,465,337

Confidence Interval Values (5)

State Lower Limit: 160,841,399 (State Test Value minus Margin of Error Percent)
Local Test Value: 168,118,247 (Within Confidence Interval)
State Upper Limit: 177,772,073 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 161,773,842 (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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