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2007 Confidence Interval Detail
143/Lavaca
143-906/Ezzell ISD

Category Summary

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

Stratum
Variance
D3 25,356,620 0.9967 25,440,574 20 2,017 .021533173
G1 24,285,029 0.9355 25,959,411 8 28 .103883935
G1 22,968,439 0.9514 24,141,727 6 11 .023530232
G1 31,807,369 0.9650 32,961,004 3 5 .027564680
Random Totals: 104,417,457   108,502,716 37 2,061  
Catg J Exception Values: 1,827,470   1,789,132      
Catg D1 Exception Values: 7,436,990   7,015,683      
Catg G1 Exception Values: 39,522,170   36,589,365      
Total Test Values (4): 153,204,087   153,896,896      

Margin of Error

Margin of Error Percent: 5.0000001
Margin of Error Value: 7,694,845

Confidence Interval Values (5)

State Lower Limit: 146,202,051 (State Test Value minus Margin of Error Percent)
Local Test Value: 153,204,087 (Within Confidence Interval)
State Upper Limit: 161,591,741 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 166,530,658 (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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