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2006 Confidence Interval Detail
194/Red River
194-905/Detroit ISD

Category Summary

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

Stratum
Variance
A 4,110,258 0.9369 4,387,083 15 174 .028047054
A 4,086,113 0.8805 4,640,673 15 96 .032796802
A 4,094,691 0.9676 4,231,801 15 66 .032482442
A 4,088,577 0.9746 4,195,133 15 39 .024450676
D3 27,914,520 1.0319 27,051,575 21 2,329 .003957642
Random Totals: 44,294,159   44,506,265 81 2,704  
Catg J Exception Values: 1,956,700   1,964,395      
Catg D1 Exception Values: 12,747,440   12,409,674      
Total Test Values (4): 58,998,299   58,880,334      

Margin of Error

Margin of Error Percent: 5.0000005
Margin of Error Value: 2,944,017

Confidence Interval Values (5)

State Lower Limit: 55,936,317 (State Test Value minus Margin of Error Percent)
Local Test Value: 58,998,299 (Within Confidence Interval)
State Upper Limit: 61,824,351 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 49,794,972 (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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