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2009 Confidence Interval Detail
251/Yoakum
251-902/Plains ISD

Category Summary

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

Stratum
Variance
D3 14,689,690 0.8243 17,820,806 15 2,175 .091430671
G1 131,724,706 1.0643 123,766,519 15 66 .006697740
G1 138,841,324 1.0271 135,178,000 9 10 .004931374
Random Totals: 285,255,720   276,765,325 39 2,251  
Catg D1 Exception Values: 49,305,810   81,743,376      
Catg G1 Exception Values: 383,984,132   375,692,281      
Total Test Values (4): 718,545,662   734,200,982      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 36,710,049

Confidence Interval Values (5)

State Lower Limit: 697,490,933 (State Test Value minus Margin of Error Percent)
Local Test Value: 718,545,662 (Within Confidence Interval)
State Upper Limit: 770,911,031 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 841,565,396 (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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