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2007 Confidence Interval Detail
251/Yoakum
251-901/Denver City ISD

Category Summary

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

Stratum
Variance
A 15,502,973 0.9452 16,401,791 7 608 .014516809
A 15,600,198 0.7549 20,665,251 7 355 .013121186
A 15,394,184 0.8719 17,655,905 7 231 .090741647
A 15,487,534 0.9386 16,500,675 7 139 .072738582
G1 136,464,127 0.9908 137,731,255 2 3 .003837958
Random Totals: 198,449,016   208,954,877 30 1,336  
Catg D1 Exception Values: 14,117,702   19,270,166      
Catg G1 Exception Values: 1,485,055,780   1,435,014,680      
Total Test Values (4): 1,697,622,498   1,663,239,723      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 83,161,986

Confidence Interval Values (5)

State Lower Limit: 1,580,077,737 (State Test Value minus Margin of Error Percent)
Local Test Value: 1,697,622,498 (Within Confidence Interval)
State Upper Limit: 1,746,401,709 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 2,509,484,031 (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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