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2007 Confidence Interval Detail
210/Shelby
210-903/Shelbyville ISD

Category Summary

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

Stratum
Variance
A 5,910,881 0.9276 6,372,230 7 241 .053410196
A 5,887,438 0.9249 6,365,486 7 125 .099670836
A 5,873,290 0.9350 6,281,594 6 87 .023980656
A 5,882,642 1.0484 5,611,066 6 51 .032212325
D3 54,788,000 0.9748 56,204,350 20 3,978 .023931046
G1 25,042,261 0.9708 25,795,489 6 38 .015775119
G1 25,362,766 1.0318 24,581,087 5 18 .009858145
G1 22,967,860 1.0058 22,835,415 4 10 .020112639
G1 24,121,179 0.9837 24,520,869 4 7 .000428587
Random Totals: 175,836,317   178,567,586 65 4,555  
Catg J Exception Values: 2,852,555   2,844,879      
Catg D1 Exception Values: 16,754,480   15,465,878      
Total Test Values (4): 195,443,352   196,878,343      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 9,843,917

Confidence Interval Values (5)

State Lower Limit: 187,034,426 (State Test Value minus Margin of Error Percent)
Local Test Value: 195,443,352 (Within Confidence Interval)
State Upper Limit: 206,722,260 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 196,498,788 (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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