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2008 Confidence Interval Detail
005/Archer
252-903/Olney ISD

Category Summary

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

Stratum
Variance
A 3,817,420 0.9432 4,047,307 11 173 .024172593
D3 3,603,420 0.9891 3,643,130 11 817 .040091839
G1 6,425,960 1.0603 6,060,511 6 32 .022117890
G1 6,345,350 1.0958 5,790,610 4 11 .036040989
G1 7,124,110 1.0924 6,521,521 5 6 .014543815
Random Totals: 27,316,260   26,063,079 37 1,039  
Catg D1 Exception Values: 10,371,710   8,783,568      
Catg G1 Exception Values: 5,203,780   5,302,446      
Total Test Values (4): 42,891,750   40,149,093      

Margin of Error

Margin of Error Percent: 5.0000009
Margin of Error Value: 2,007,455

Confidence Interval Values (5)

State Lower Limit: 38,141,638 (State Test Value minus Margin of Error Percent)
State Upper Limit: 42,156,548 (State Test Value plus Margin of Error Percent)
Local Test Value: 42,891,750 (Outside Confidence Interval)
Value Assigned (6): 56,276,169 (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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