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2007 Confidence Interval Detail
071/El Paso
071-902/El Paso ISD

Category Summary

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

Stratum
Variance
A 2,382,232,383 0.9991 2,384,378,323 54 26,176 .014947329
A 2,382,267,975 1.0140 2,349,376,701 82 17,416 .008680558
A 2,382,327,691 1.0224 2,330,132,718 109 11,905 .007646104
A 2,381,989,394 1.0105 2,357,238,391 133 6,373 .011538132
B 204,830,598 0.9411 217,650,194 35 2,086 .035652911
B 205,541,801 0.8317 247,134,545 37 776 .131912023
B 209,547,965 0.9361 223,852,115 9 75 .069338003
B 199,153,545 0.8628 230,822,375 7 21 .017083279
F1 693,227,146 0.8444 820,970,092 27 2,261 .090835748
F1 694,529,777 0.8251 841,752,245 10 623 .063513296
F1 694,022,003 0.9385 739,501,335 7 207 .048466683
F1 690,896,718 0.8538 809,202,059 9 44 .038055881
L1 306,905,204 0.8312 369,231,477 7 3,012 .176245556
L1 307,509,230 1.0563 291,119,218 7 450 .019750930
L1 307,223,856 0.9727 315,846,464 7 98 .006955051
L1 304,858,549 0.9376 325,147,770 5 17 .012144926
Random Totals: 14,347,063,835   14,853,356,022 545 71,540  
Catg D1 Exception Values: 202,315   196,454      
Total Test Values (4): 14,347,266,150   14,853,552,476      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 742,677,624

Confidence Interval Values (5)

State Lower Limit: 14,110,874,852 (State Test Value minus Margin of Error Percent)
Local Test Value: 14,347,266,150 (Within Confidence Interval)
State Upper Limit: 15,596,230,100 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 13,240,270,839 (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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