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2009 Confidence Interval Detail
205/San Patricio
205-907/Taft ISD

Category Summary

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

Stratum
Variance
A 22,763,450 0.9949 22,880,139 8 632 .010186657
A 21,106,607 0.9535 22,135,928 8 340 .014683327
A 22,169,492 0.9752 22,733,277 7 234 .007107022
A 22,337,037 1.0061 22,201,607 8 118 .018678823
D3 19,568,355 1.0415 18,788,627 11 1,171 .116850265
G1 11,707,480 0.9767 11,986,772 7 27 .033704731
G1 11,078,340 1.0172 10,891,015 5 11 .003935900
G1 13,030,770 0.9562 13,627,662 4 6 .005007799
G1 8,604,580 1.0402 8,272,044 2 3 .001683957
Random Totals: 152,366,111   153,517,071 60 2,542  
Catg J Exception Values: 8,606,489   8,835,390      
Catg D1 Exception Values: 21,846,517   26,668,869      
Total Test Values (4): 182,819,117   189,021,330      

Margin of Error

Margin of Error Percent: 5.0000003
Margin of Error Value: 9,451,067

Confidence Interval Values (5)

State Lower Limit: 179,570,263 (State Test Value minus Margin of Error Percent)
Local Test Value: 182,819,117 (Within Confidence Interval)
State Upper Limit: 198,472,397 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 221,958,120 (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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