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2007 Confidence Interval Detail
071/El Paso
071-906/Anthony ISD

Category Summary

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

Stratum
Variance
A 12,283,223 0.8951 13,722,738 10 240 .021934961
A 12,225,599 0.9230 13,245,503 7 155 .015850148
A 12,281,127 1.0307 11,915,326 9 122 .002642684
A 12,226,666 1.0360 11,801,801 8 81 .003889880
C 1,449,804 1.0439 1,388,834 8 64 .046291794
C 1,533,494 0.8764 1,749,765 6 11 .108954658
C 1,284,038 1.0244 1,253,454 4 5 .035467511
F1 8,493,175 0.8176 10,387,934 10 38 .091086109
F1 7,915,533 0.9184 8,618,829 5 7 .018615229
L1 5,521,844 0.9831 5,616,767 6 45 .062769384
L1 5,632,686 0.9651 5,836,376 4 9 .006320662
Random Totals: 80,847,189   85,537,327 77 777  
Catg D1 Exception Values: 480,321   470,202      
Catg C Exception Values: 1,576,942   1,421,238      
Catg F1 Exception Values: 15,008,802   15,319,224      
Catg L1 Exception Values: 6,827,991   7,147,001      
Total Test Values (4): 104,741,245   109,894,992      

Margin of Error

Margin of Error Percent: 5.0000004
Margin of Error Value: 5,494,750

Confidence Interval Values (5)

State Lower Limit: 104,400,242 (State Test Value minus Margin of Error Percent)
Local Test Value: 104,741,245 (Within Confidence Interval)
State Upper Limit: 115,389,742 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 118,068,533 (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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