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2012 Confidence Interval Detail
177/Nolan
177-901/Roscoe ISD

Category Summary

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

Stratum
Variance
A 6,202,740 0.9254 6,702,766 11 221 .037558956
A 4,754,540 1.0959 4,338,480 9 80 .012079838
A 6,895,170 0.9437 7,306,527 10 85 .010210400
A 10,286,040 1.0291 9,995,180 16 77 .015623852
D3 13,128,450 0.9925 13,227,657 18 694 .017298988
G1 5,370,540 1.0341 5,193,444 7 15 .043521601
L1 1,305,230 0.9891 1,319,614 7 15 .008743717
L1 4,179,260 0.9944 4,202,796 5 9 .000272562
Random Totals: 52,121,970   52,286,464 83 1,196  
Catg J Exception Values: 4,086,100   4,529,373      
Catg D1 Exception Values: 13,450,370   13,021,320      
Catg G1 Exception Values: 8,095,170   7,905,567      
Catg L1 Exception Values: 5,702,360   5,714,418      
Total Test Values (4): 83,455,970   83,457,142      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 4,172,857

Confidence Interval Values (5)

State Lower Limit: 79,284,285 (State Test Value minus Margin of Error Percent)
Local Test Value: 83,455,970 (Within Confidence Interval)
State Upper Limit: 87,629,999 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 103,206,120 (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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