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2008 Confidence Interval Detail
125/Jim Wells
125-903/Orange Grove ISD

Category Summary

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

Stratum
Variance
A 6,488,562 1.0660 6,086,831 7 221 .046372851
A 10,237,254 0.9570 10,697,235 7 166 .007286698
A 12,604,215 0.8672 14,534,381 7 115 .073641706
A 17,259,250 0.9961 17,326,825 6 87 .001290850
D3 114,671,532 1.0102 113,513,692 30 6,855 .038345862
Random Totals: 161,260,813   162,158,964 57 7,444  
Catg J Exception Values: 5,800,454   5,795,489      
Catg D1 Exception Values: 11,117,875   10,571,922      
Total Test Values (4): 178,179,142   178,526,375      

Margin of Error

Margin of Error Percent: 5.0000001
Margin of Error Value: 8,926,319

Confidence Interval Values (5)

State Lower Limit: 169,600,056 (State Test Value minus Margin of Error Percent)
Local Test Value: 178,179,142 (Within Confidence Interval)
State Upper Limit: 187,452,694 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 178,954,754 (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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