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2009 Confidence Interval Detail
186/Pecos
186-903/Iraan-Sheffield ISD

Category Summary

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

Stratum
Variance
D3 5,977,450 0.9900 6,037,828 15 3,633 .000036119
G1 15,809,740 1.0945 14,444,714 4 10 .029487926
G1 17,037,170 1.0104 16,861,807 3 5 .000549898
G1 17,875,413 0.9943 17,977,887 2 3 .000229302
Random Totals: 56,699,773   55,322,236 24 3,651  
Catg D1 Exception Values: 3,774,620   10,202,722      
Catg G1 Exception Values: 1,158,839,339   1,193,057,142      
Total Test Values (4): 1,219,313,732   1,258,582,100      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 62,929,105

Confidence Interval Values (5)

State Lower Limit: 1,195,652,995 (State Test Value minus Margin of Error Percent)
Local Test Value: 1,219,313,732 (Within Confidence Interval)
State Upper Limit: 1,321,511,205 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 1,617,261,946 (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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