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2008 Confidence Interval Detail
125/Jim Wells
125-902/Ben Bolt-Palito Blanco ISD

Category Summary

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

Stratum
Variance
A 1,226,945 0.8999 1,363,424 6 71 .016396372
A 1,115,425 1.0412 1,071,288 6 29 .014009858
A 1,233,849 0.9496 1,299,336 5 19 .016409361
A 1,279,115 0.9562 1,337,707 4 11 .007544442
D3 30,226,579 0.8814 34,293,827 30 2,043 .085912819
G1 5,145,097 0.8902 5,779,709 13 25 .115663651
Random Totals: 40,227,010   45,145,291 64 2,198  
Catg J Exception Values: 2,722,588   2,717,085      
Catg D1 Exception Values: 10,593,357   10,213,920      
Total Test Values (4): 53,542,955   58,076,296      

Margin of Error

Margin of Error Percent: 6.4188563
Margin of Error Value: 3,727,834

Confidence Interval Values (5)

Local Test Value: 53,542,955 (Outside Confidence Interval)
State Lower Limit: 54,348,462 (State Test Value minus Margin of Error Percent)
State Upper Limit: 61,804,130 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 57,957,208 (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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