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2009 Confidence Interval Detail
062/Dewitt
062-902/Nordheim ISD

Category Summary

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

Stratum
Variance
D3 9,840,710 0.9789 10,052,825 10 1,332 .023433143
G1 33,684,767 1.0565 31,883,357 5 15 .111554281
G1 28,210,260 1.0290 27,415,219 3 5 .004210263
G1 39,145,530 1.1524 33,968,700 3 4 .008757076
Random Totals: 110,881,267   103,320,101 21 1,356  
Catg J Exception Values: 1,529,095   1,545,307      
Catg D1 Exception Values: 4,443,420   4,198,402      
Catg G1 Exception Values: 21,950,030   21,718,564      
Total Test Values (4): 138,803,812   130,782,374      

Margin of Error

Margin of Error Percent: 6.5614843
Margin of Error Value: 8,581,265

Confidence Interval Values (5)

State Lower Limit: 122,201,109 (State Test Value minus Margin of Error Percent)
Local Test Value: 138,803,812 (Within Confidence Interval)
State Upper Limit: 139,363,639 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 111,742,335 (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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