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2009 Confidence Interval Detail
074/Fannin
074-905/Ector ISD

Category Summary

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

Stratum
Variance
A 4,332,230 0.8278 5,233,426 8 123 .032975726
A 4,669,210 0.8542 5,466,179 6 61 .030206311
A 3,740,930 1.0807 3,461,580 8 31 .015982486
A 4,820,130 1.0516 4,583,615 5 23 .008260131
D3 15,213,790 1.0683 14,241,121 18 609 .049149055
Random Totals: 32,776,290   32,985,921 45 847  
Catg J Exception Values: 2,881,200   2,655,911      
Catg D1 Exception Values: 1,405,770   1,311,465      
Total Test Values (4): 37,063,260   36,953,297      

Margin of Error

Margin of Error Percent: 5.0000004
Margin of Error Value: 1,847,665

Confidence Interval Values (5)

State Lower Limit: 35,105,632 (State Test Value minus Margin of Error Percent)
Local Test Value: 37,063,260 (Within Confidence Interval)
State Upper Limit: 38,800,962 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 33,308,511 (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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