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2007 Confidence Interval Detail
030/Callahan
030-902/Clyde ISD

Category Summary

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

Stratum
Variance
A 22,919,820 0.9557 23,982,233 13 658 .007323013
A 22,867,430 0.9633 23,738,638 13 351 .005144361
A 22,873,824 0.9525 24,014,513 7 254 .004301526
A 22,882,682 0.9781 23,395,033 25 166 .001297814
D3 70,034,630 1.1527 60,757,031 37 3,937 .091575841
F1 3,235,419 1.1011 2,938,352 7 77 .128169811
F1 3,279,031 0.8961 3,659,224 8 26 .015614233
F1 3,198,712 0.9684 3,303,090 7 12 .000204819
Random Totals: 171,291,548   165,788,114 117 5,481  
Catg J Exception Values: 9,704,560   10,724,331      
Catg D1 Exception Values: 10,298,260   10,339,792      
Catg F1 Exception Values: 4,007,490   4,162,178      
Total Test Values (4): 195,301,858   191,014,415      

Margin of Error

Margin of Error Percent: 5.0000001
Margin of Error Value: 9,550,721

Confidence Interval Values (5)

State Lower Limit: 181,463,694 (State Test Value minus Margin of Error Percent)
Local Test Value: 195,301,858 (Within Confidence Interval)
State Upper Limit: 200,565,136 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 305,249,807 (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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