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2011 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
A 5,033,980 0.9860 5,105,456 10 186 .001759576
A 6,831,290 0.9981 6,844,294 10 152 .000934408
A 5,694,170 1.0093 5,641,702 10 81 .002148137
A 4,830,890 1.0013 4,824,618 10 42 .003105695
G1 14,772,361 0.9956 14,837,647 3 5 .001166962
G1 19,054,106 1.0021 19,014,176 2 3 .000130951
Random Totals: 56,216,797   56,267,893 45 469  
Catg D1 Exception Values: 3,774,560   8,290,896      
Catg G1 Exception Values: 1,505,720,752   1,519,828,884      
Total Test Values (4): 1,565,712,109   1,584,387,673      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 79,219,384

Confidence Interval Values (5)

State Lower Limit: 1,505,168,289 (State Test Value minus Margin of Error Percent)
Local Test Value: 1,565,712,109 (Within Confidence Interval)
State Upper Limit: 1,663,607,057 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 1,623,222,244 (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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