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2007 Confidence Interval Detail
023/Briscoe
023-902/Silverton ISD

Category Summary

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

Stratum
Variance
A 2,209,151 0.9378 2,355,674 16 169 .006336629
A 2,189,720 0.9332 2,346,464 15 77 .036403662
A 2,174,829 1.0039 2,166,380 15 48 .002373339
A 2,171,859 1.0337 2,101,053 15 27 .009310361
D3 6,427,858 0.9827 6,541,018 21 1,733 .006811630
Random Totals: 15,173,417   15,510,589 82 2,054  
Catg D1 Exception Values: 33,215,388   30,881,706      
Total Test Values (4): 48,388,805   46,392,295      

Margin of Error

Margin of Error Percent: 5.0000005
Margin of Error Value: 2,319,615

Confidence Interval Values (5)

State Lower Limit: 44,072,680 (State Test Value minus Margin of Error Percent)
Local Test Value: 48,388,805 (Within Confidence Interval)
State Upper Limit: 48,711,910 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 49,960,366 (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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