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2009 Confidence Interval Detail
094/Guadalupe
028-906/Prairie Lea ISD

Category Summary

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

Stratum
Variance
A 3,765,784 0.9088 4,143,688 7 23 .074422673
D3 2,344,271 1.1526 2,033,898 9 94 .045040812
G1 27,317,272 1.0169 26,863,283 7 24 .003593102
Random Totals: 33,427,327   33,040,869 23 141  
Catg D1 Exception Values: 199,677   206,356      
Total Test Values (4): 33,627,004   33,247,225      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 1,662,361

Confidence Interval Values (5)

State Lower Limit: 31,584,864 (State Test Value minus Margin of Error Percent)
Local Test Value: 33,627,004 (Within Confidence Interval)
State Upper Limit: 34,909,586 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 33,870,321 (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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