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2010 Confidence Interval Detail
073/Falls
073-904/Westphalia ISD

Category Summary

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

Stratum
Variance
A 972,830 0.8047 1,208,935 15 30 .036824781
A 787,390 0.9748 807,745 10 14 .023064653
D3 6,287,300 0.9512 6,609,861 20 443 .018792203
Random Totals: 8,047,520   8,626,541 45 487  
Catg J Exception Values: 473,450   495,710      
Catg D1 Exception Values: 2,195,800   2,180,856      
Catg A Exception Values: 2,097,760   2,043,703      
Total Test Values (4): 12,814,530   13,346,810      

Margin of Error

Margin of Error Percent: 5.0000037
Margin of Error Value: 667,341

Confidence Interval Values (5)

State Lower Limit: 12,679,469 (State Test Value minus Margin of Error Percent)
Local Test Value: 12,814,530 (Within Confidence Interval)
State Upper Limit: 14,014,151 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 14,421,148 (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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