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2011 Confidence Interval Detail
247/Wilson
247-903/La Vernia ISD

Category Summary

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

Stratum
Variance
A 138,095,647 0.9483 145,624,430 28 1,331 .020766213
A 134,621,877 0.9921 135,693,858 20 693 .002854236
A 137,179,206 0.9944 137,951,736 28 569 .003740906
A 174,956,124 0.9739 179,644,855 45 561 .003245061
D3 92,656,474 1.0104 91,702,765 15 2,033 .031412214
Random Totals: 677,509,328   690,617,644 136 5,187  
Catg D1 Exception Values: 4,332,269   3,492,540      
Total Test Values (4): 681,841,597   694,110,184      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 34,705,509

Confidence Interval Values (5)

State Lower Limit: 659,404,675 (State Test Value minus Margin of Error Percent)
Local Test Value: 681,841,597 (Within Confidence Interval)
State Upper Limit: 728,815,693 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 701,582,526 (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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