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2006 Confidence Interval Detail
048/Concho
048-903/Paint Rock ISD

Category Summary

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

Stratum
Variance
A 4,245,714 0.9178 4,625,969 10 140 .048413813
A 4,216,252 0.9668 4,361,038 13 59 .008886915
A 4,267,172 0.9604 4,443,120 11 31 .008758483
A 4,181,956 1.0739 3,894,176 7 11 .004927990
C 1,289,296 0.9906 1,301,530 11 173 .002088708
C 1,301,693 1.0022 1,298,836 9 77 .002391163
C 1,275,533 1.0575 1,206,178 7 40 .011986998
C 1,245,020 1.0330 1,205,247 6 17 .002386946
D3 9,821,220 0.8820 11,135,170 37 1,702 .277323729
G1 3,088,767 0.9794 3,153,734 20 39 .013024384
Random Totals: 34,932,623   36,624,998 131 2,289  
Catg J Exception Values: 3,716,500   3,561,580      
Catg D1 Exception Values: 12,984,410   14,218,283      
Catg G1 Exception Values: 877,025   901,858      
Total Test Values (4): 52,510,558   55,306,719      

Margin of Error

Margin of Error Percent: 5.0000001
Margin of Error Value: 2,765,336

Confidence Interval Values (5)

Local Test Value: 52,510,558 (Outside Confidence Interval)
State Lower Limit: 52,541,383 (State Test Value minus Margin of Error Percent)
State Upper Limit: 58,072,055 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 60,031,287 (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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