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2008 Confidence Interval Detail
216/Sterling
216-901/Sterling City ISD

Category Summary

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

Stratum
Variance
D3 11,266,791 0.9028 12,479,831 25 2,007 .053524007
G1 119,227,080 1.0061 118,504,204 17 441 .004009960
G1 119,859,090 0.8583 139,647,081 15 124 .452638370
G1 123,279,367 0.9177 134,335,150 14 42 .089056838
G1 114,489,356 1.1665 98,147,755 7 11 .018636386
Random Totals: 488,121,684   503,114,021 78 2,625  
Catg J Exception Values: 10,853,177   11,143,791      
Catg D1 Exception Values: 9,751,267   13,074,668      
Total Test Values (4): 508,726,128   527,332,480      

Margin of Error

Margin of Error Percent: 9.2949668
Margin of Error Value: 49,015,379

Confidence Interval Values (5)

State Lower Limit: 478,317,101 (State Test Value minus Margin of Error Percent)
Local Test Value: 508,726,128 (Within Confidence Interval)
State Upper Limit: 576,347,859 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 1,324,908,240 (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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