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2008 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 4,800,110 0.9994 4,802,992 18 156 .004166488
A 4,767,320 0.9205 5,179,055 23 63 .029127029
A 4,460,440 0.9513 4,688,784 16 30 .011624952
C 1,208,040 0.9770 1,236,479 8 175 .093589707
C 1,230,450 0.9170 1,341,821 7 75 .100722723
C 1,143,790 0.8647 1,322,759 6 34 .047590193
C 1,061,450 0.9286 1,143,065 5 12 .016772155
D3 9,829,800 0.8532 11,521,097 22 1,707 .028351884
G1 5,764,174 1.0405 5,539,812 15 44 .086039795
Random Totals: 34,265,574   36,775,864 120 2,296  
Catg J Exception Values: 3,245,269   2,913,407      
Catg D1 Exception Values: 13,921,370   14,173,647      
Catg A Exception Values: 4,421,050   4,264,508      
Catg G1 Exception Values: 1,621,161   1,642,926      
Total Test Values (4): 57,474,424   59,770,352      

Margin of Error

Margin of Error Percent: 5.0000007
Margin of Error Value: 2,988,518

Confidence Interval Values (5)

State Lower Limit: 56,781,834 (State Test Value minus Margin of Error Percent)
Local Test Value: 57,474,424 (Within Confidence Interval)
State Upper Limit: 62,758,870 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 64,395,994 (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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