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2008 Confidence Interval Detail
227/Travis
246-913/Leander ISD

Category Summary

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

Stratum
Variance
A 4,383,294,785 0.9372 4,677,011,081 49 12,684 .016219050
B 403,666,835 0.8915 452,795,104 10 27 .003803226
D3 122,570,252 0.9709 126,243,951 17 1,224 .005328624
F1 422,440,064 0.9495 444,907,914 10 298 .005272583
Random Totals: 5,331,971,936   5,700,958,050 86 14,233  
Catg D1 Exception Values: 1,811,302   1,275,808      
Total Test Values (4): 5,333,783,238   5,702,233,858      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 285,111,693

Confidence Interval Values (5)

Local Test Value: 5,333,783,238 (Outside Confidence Interval)
State Lower Limit: 5,417,122,165 (State Test Value minus Margin of Error Percent)
State Upper Limit: 5,987,345,551 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 5,486,080,925 (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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