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2010 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 4,347,750 0.9679 4,491,941 9 168 .013718972
A 5,149,640 0.9792 5,259,028 10 104 .003974916
A 5,184,820 0.9824 5,277,708 9 70 .014239224
A 4,750,550 0.9984 4,758,163 8 34 .009438198
D3 33,502,340 1.0459 32,032,068 20 2,386 .036895557
Random Totals: 52,935,100   51,818,908 56 2,762  
Catg J Exception Values: 1,166,080   1,117,093      
Catg D1 Exception Values: 12,401,040   12,180,197      
Total Test Values (4): 66,502,220   65,116,198      

Margin of Error

Margin of Error Percent: 5.0000002
Margin of Error Value: 3,255,810

Confidence Interval Values (5)

State Lower Limit: 61,860,388 (State Test Value minus Margin of Error Percent)
Local Test Value: 66,502,220 (Within Confidence Interval)
State Upper Limit: 68,372,008 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 57,809,747 (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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