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2011 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 18,525,056 0.9847 18,812,893 10 309 .020241512
A 18,213,157 0.9870 18,453,047 11 178 .004618009
A 19,183,151 1.0440 18,374,666 10 131 .009822888
A 18,384,169 1.0119 18,167,970 10 87 .005385532
D3 74,946,780 0.9985 75,059,369 19 2,950 .008192038
Random Totals: 149,252,313   148,867,945 60 3,655  
Catg D1 Exception Values: 16,479,596   13,598,471      
Total Test Values (4): 165,731,909   162,466,416      

Margin of Error

Margin of Error Percent: 5.0000001
Margin of Error Value: 8,123,321

Confidence Interval Values (5)

State Lower Limit: 154,343,095 (State Test Value minus Margin of Error Percent)
Local Test Value: 165,731,909 (Within Confidence Interval)
State Upper Limit: 170,589,737 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 188,566,127 (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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