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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 2,388,943,512 0.9991 2,391,095,498 54 26,176 .014947329
A 2,388,979,204 1.0140 2,355,995,270 82 17,416 .008680558
A 2,389,039,088 1.0224 2,336,697,074 109 11,905 .007646104
A 2,388,699,839 1.0105 2,363,879,108 133 6,373 .011538132
B 205,910,276 0.9411 218,797,446 35 2,086 .035652911
B 206,625,227 0.8317 248,437,209 37 776 .131912023
B 210,652,508 0.9361 225,032,056 9 75 .069338003
B 200,203,298 0.8628 232,039,057 7 21 .017083279
F1 699,698,901 0.8444 828,634,416 27 2,261 .090835748
F1 701,013,693 0.8251 849,610,584 10 623 .063513296
F1 700,501,178 0.9385 746,405,091 7 207 .048466683
F1 697,346,717 0.8538 816,756,520 9 44 .038055881
L1 307,513,260 0.8312 369,963,017 7 3,012 .176245556
L1 308,118,483 1.0563 291,695,998 7 450 .019750930
L1 307,832,544 0.9727 316,472,236 7 98 .006955051
L1 305,462,550 0.9376 325,791,969 5 17 .012144926
Random Totals: 14,406,540,278   14,917,302,549 545 71,540  
Catg D1 Exception Values: 209,949   203,949      
Total Test Values (4): 14,406,750,227   14,917,506,498      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 745,875,325

Confidence Interval Values (5)

State Lower Limit: 14,171,631,173 (State Test Value minus Margin of Error Percent)
Local Test Value: 14,406,750,227 (Within Confidence Interval)
State Upper Limit: 15,663,381,823 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 13,286,640,856 (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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