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2010 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 4,469,720 0.9471 4,719,375 12 146 .079735083
A 4,841,560 0.9531 5,079,803 11 66 .022948675
A 4,439,820 1.1279 3,936,360 9 32 .022165912
A 5,765,450 1.0069 5,725,941 7 18 .018537713
C 1,196,250 1.0327 1,158,371 9 172 .010456233
C 1,184,190 1.0121 1,170,033 9 72 .012565481
C 1,317,610 0.9469 1,391,499 8 38 .010540682
C 1,255,060 0.9809 1,279,498 5 13 .000297602
D3 11,224,560 0.9543 11,762,087 20 1,709 .023177533
G1 3,669,228 1.0028 3,658,983 8 42 .000746518
Random Totals: 39,363,448   39,881,950 98 2,308  
Catg J Exception Values: 2,610,990   2,583,523      
Catg D1 Exception Values: 14,179,820   16,395,784      
Catg G1 Exception Values: 2,472,931   2,570,103      
Total Test Values (4): 58,627,189   61,431,360      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 3,071,568

Confidence Interval Values (5)

State Lower Limit: 58,359,792 (State Test Value minus Margin of Error Percent)
Local Test Value: 58,627,189 (Within Confidence Interval)
State Upper Limit: 64,502,928 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 66,082,791 (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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