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2011 Confidence Interval Detail
207/Schleicher
207-901/Schleicher County ISD

Category Summary

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

Stratum
Variance
A 5,946,330 0.6269 9,485,293 10 354 .040844708
A 5,654,800 0.6540 8,646,483 10 177 .018362148
A 6,099,590 0.7238 8,427,176 10 107 .008066665
A 5,639,570 0.9398 6,000,819 10 46 .009732789
D3 20,768,089 0.9862 21,058,699 15 3,760 .008592048
G1 43,692,161 1.0392 42,044,035 10 357 .016567716
G1 43,899,476 1.0502 41,801,063 9 124 .006969594
G1 43,071,649 1.0063 42,801,996 8 49 .059339288
G1 43,504,913 1.0686 40,712,065 6 13 .004135881
Random Totals: 218,276,578   220,977,629 88 4,987  
Catg J Exception Values: 5,241,810   8,180,307      
Catg D1 Exception Values: 33,123,604   41,061,201      
Total Test Values (4): 256,641,992   270,219,137      

Margin of Error

Margin of Error Percent: 5.0000001
Margin of Error Value: 13,510,957

Confidence Interval Values (5)

Local Test Value: 256,641,992 (Outside Confidence Interval)
State Lower Limit: 256,708,180 (State Test Value minus Margin of Error Percent)
State Upper Limit: 283,730,094 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 349,972,076 (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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