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2006 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 10,243,450 0.8708 11,763,264 14 1,964 .006010039
G1 108,788,560 1.1386 95,545,898 14 432 .058777431
G1 108,889,450 1.1978 90,907,873 12 127 .073737928
G1 108,604,805 1.1172 97,211,605 13 45 .028312655
G1 107,115,648 1.1602 92,325,158 6 14 .005576106
Random Totals: 443,641,913   387,753,798 59 2,582  
Catg J Exception Values: 11,120,330   11,160,465      
Catg D1 Exception Values: 8,301,881   10,692,330      
Total Test Values (4): 463,064,124   409,606,593      

Margin of Error

Margin of Error Percent: 5.0000001
Margin of Error Value: 20,480,330

Confidence Interval Values (5)

State Lower Limit: 389,126,263 (State Test Value minus Margin of Error Percent)
State Upper Limit: 430,086,923 (State Test Value plus Margin of Error Percent)
Local Test Value: 463,064,124 (Outside Confidence Interval)
Value Assigned (6): 547,913,042 (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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