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2009 Confidence Interval Detail
142/La Salle
142-901/Cotulla ISD

Category Summary

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

Stratum
Variance
A 8,837,202 0.9676 9,133,115 7 548 .039745966
A 17,582,041 1.0490 16,760,764 8 512 .009621131
A 12,825,929 1.0082 12,721,612 7 214 .019729965
A 16,086,967 0.9527 16,885,659 7 143 .003111407
D3 23,714,187 0.9634 24,615,100 20 4,886 .065607310
G1 42,650,753 1.0161 41,974,956 15 194 .014026993
G1 42,151,576 0.9427 44,713,669 15 91 .025699303
G1 42,536,558 0.9867 43,109,920 15 53 .003380721
G1 42,066,165 0.9988 42,116,705 11 20 .010674088
L1 1,911,405 0.9281 2,059,482 6 28 .012182332
L1 2,046,721 1.0178 2,010,927 4 10 .004400948
L1 3,277,652 1.0347 3,167,732 3 4 .000590288
Random Totals: 255,687,156   259,269,641 118 6,703  
Catg J Exception Values: 19,069,055   19,799,796      
Catg D1 Exception Values: 51,411,245   64,280,344      
Catg L1 Exception Values: 9,100,000   9,090,900      
Total Test Values (4): 335,267,456   352,440,681      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 17,622,034

Confidence Interval Values (5)

State Lower Limit: 334,818,647 (State Test Value minus Margin of Error Percent)
Local Test Value: 335,267,456 (Within Confidence Interval)
State Upper Limit: 370,062,715 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 400,461,060 (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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