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2007 Confidence Interval Detail
254/Zavala
254-902/La Pryor ISD

Category Summary

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

Stratum
Variance
A 2,429,067 0.8705 2,790,427 14 201 .070786060
A 2,440,174 0.9652 2,528,154 15 108 .016685682
A 2,429,552 0.9274 2,619,746 12 73 .009887966
A 2,415,921 0.9805 2,463,968 11 40 .004378179
D3 8,837,567 1.0066 8,779,621 26 859 .009604480
Random Totals: 18,552,281   19,181,916 78 1,281  
Catg J Exception Values: 4,842,097   4,870,650      
Catg D1 Exception Values: 11,780,925   12,220,881      
Total Test Values (4): 35,175,303   36,273,447      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 1,813,672

Confidence Interval Values (5)

State Lower Limit: 34,459,775 (State Test Value minus Margin of Error Percent)
Local Test Value: 35,175,303 (Within Confidence Interval)
State Upper Limit: 38,087,119 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 39,253,662 (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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