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2008 Confidence Interval Detail
035/Castro
140-907/Springlake-Earth ISD

Category Summary

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

Stratum
Variance
D3 5,738,270 1.0719 5,353,363 10 333 .000122498
Random Totals: 5,738,270   5,353,363 10 333  
Catg J Exception Values: 798,000   675,299      
Catg D1 Exception Values: 9,086,590   8,496,022      
Total Test Values (4): 15,622,860   14,524,684      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 726,234

Confidence Interval Values (5)

State Lower Limit: 13,798,450 (State Test Value minus Margin of Error Percent)
State Upper Limit: 15,250,918 (State Test Value plus Margin of Error Percent)
Local Test Value: 15,622,860 (Outside Confidence Interval)
Value Assigned (6): 17,104,476 (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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